Day: October 19, 2021

SDS of cas: 177-11-7. Recently I am researching about SUFEX CLICK CHEMISTRY; NUCLEOPHILIC-SUBSTITUTION; N-ALKYLATION; SULFONAMIDES; ARYL; DISCOVERY; AMINES; ARYLATION; PEPTIDES; REAGENTS, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21502241]; Natural Science Foundation of Guangdong ProvinceNational Natural Science Foundation of Guangdong Province [2016A030313290]. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: Wei, MJ; Liang, DC; Cao, XH; Luo, WJ; Ma, GJ; Liu, ZY; Li, L. The CAS is 177-11-7. Through research, I have a further understanding and discovery of 1,4-Dioxa-8-azaspiro[4.5]decane

A broad-spectrum, catalytic method has been developed for the synthesis of sulfonamides and sulfamates. With the activation by the combination of a catalytic amount of 1-hydroxybenzotriazole (HOBt) and silicon additives, amidations of sulfonyl fluorides and fluorosulfates proceeded smoothly and excellent yields were generally obtained (87-99 %). Noticeably, this protocol is particularly efficient for sterically hindered substrates. Catalyst loading is generally low and only 0.02 mol % of catalyst is required for the multidecagram-scale synthesis of an amantadine derivative. In addition, the potential of this method in medicinal chemistry has been demonstrated by the synthesis of the marketed drug Fedratinib via a key intermediate sulfonyl fluoride 13. Since a large number of amines are commercially available, this route provides a facile entry to access Fedratinib analogues for biological screening.

Welcome to talk about 177-11-7, If you have any questions, you can contact Wei, MJ; Liang, DC; Cao, XH; Luo, WJ; Ma, GJ; Liu, ZY; Li, L or send Email.. SDS of cas: 177-11-7

Reference：
Piperidine – Wikipedia,
Piperidine | C5H7510N – PubChem

Recently I am researching about N-ACYL KETIMINES; ASYMMETRIC-SYNTHESIS; ENANTIOSELECTIVE SYNTHESIS; 1,3-DISUBSTITUTED ISOINDOLINES; STEREOSELECTIVE-SYNTHESIS; CATALYZED ARYLATION; MICHAEL REACTIONS; DIRECTING GROUP; 3+2 ANNULATION; ACTIVATION, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21672192, U1904212, 21472176]. Published in ROYAL SOC CHEMISTRY in CAMBRIDGE ,Authors: Li, XH; Gong, JF; Song, MP. The CAS is 177-11-7. Through research, I have a further understanding and discovery of 1,4-Dioxa-8-azaspiro[4.5]decane. Safety of 1,4-Dioxa-8-azaspiro[4.5]decane

A new method for the direct and stereoselective synthesis of 3-substituted isoindolinones via Rh(iii)-catalyzed chiral N-sulfinyl amide directed asymmetric [4 + 1] annulation of benzamides with acrylic esters has been developed. The reaction proceeded through an oxidative C-H olefination and a subsequent cyclization by intramolecular aza-Michael addition, producing a series of diastereoisomeric chiral isoindolinones (20 examples) in generally good yields with a dr value up to 5.5 : 1. The absolute configurations of the newly formed C-stereocenters in the major and minor diastereomers of the catalysis product have been determined by X-ray crystal diffraction analysis to be S and R, respectively. The separation of the major diastereoisomers from the catalysis products and subsequent removal of the N-sulfinyl chiral auxiliary afforded enantiomerically pure (S)-isoindolinones. The application of the obtained (S)-isoindolinones in the synthesis of several biologically active isoindolinones such as (S)-PD172938, (S)-pazinaclone and (S)-pagoclone is presented.

Welcome to talk about 177-11-7, If you have any questions, you can contact Li, XH; Gong, JF; Song, MP or send Email.. Safety of 1,4-Dioxa-8-azaspiro[4.5]decane

Reference：
Piperidine – Wikipedia,
Piperidine | C5H7510N – PubChem

An article Dioxygen-triggered oxidative cleavage of the C-S bond towards C-N bond formation WOS:000491549100009 published article about PALLADIUM-CATALYZED AMINATION; CARBON-SULFUR; COOPERATIVE CATALYSIS; EFFICIENT SYNTHESIS; METAL-COMPLEXES; ACTIVATION; FUNCTIONALIZATION; COBALT; BENZOXAZOLES; CYCLIZATION in [Lv, Zongchao; Wang, Huamin; Quan, Zhicong; Gao, Yuan; Lei, Aiwen] Wuhan Univ, Coll Chem & Mol Sci, Inst Adv Studies, Wuhan 430072, Hubei, Peoples R China; [Lei, Aiwen] Jiangxi Normal Univ, Natl Res Ctr Carbohydrate Synth, Nanchang 330022, Jiangxi, Peoples R China in 2019, Cited 68. The Name is 1,4-Dioxa-8-azaspiro[4.5]decane. Through research, I have a further understanding and discovery of 177-11-7. Category: piperidines

Research on the cleavage of C-C bonds has been well developed. By comparison with this, the activation of C-S bonds remains challenging. Herein, dioxygen-triggered oxidative cleavage of C-S bonds has been achieved, delivering a series of N-containing heterocyclic compounds that are frequently found in pesticides and pharmaceuticals. Additionally, the potential utility of this protocol was further demonstrated by a gram-scale experiment. Mechanistically, dioxygen plays a key role in the cleavage of C-S bonds towards C-N bond formation.

Welcome to talk about 177-11-7, If you have any questions, you can contact Lv, ZC; Wang, HM; Quan, ZC; Gao, Y; Lei, AW or send Email.. Category: piperidines

Reference：
Piperidine – Wikipedia,
Piperidine | C5H7510N – PubChem

Zeng, L; Li, HR; Hu, JC; Zhang, DC; Hu, JY; Peng, P; Wang, SC; Shi, RY; Peng, JQ; Pao, CW; Chen, EL; Lee, JF; Zhang, H; Chen, YH; Lei, AW in [Zeng, Li; Li, Haoran; Hu, Jingcheng; Zhang, Dongchao; Hu, Jiayu; Peng, Pan; Wang, Shenchun; Shi, Renyi; Peng, Jiaqi; Zhang, Heng; Chen, Yi-Hung; Lei, Aiwen] Wuhan Univ, Coll Chem & Mol Sci, IAS, Wuhan, Peoples R China; [Pao, Chih-Wen; Chen, Jeng-Lung; Lee, Jyh-Fu] Natl Synchrotron Radiat Res Ctr, Hsinchu, Taiwan published Electrochemical oxidative aminocarbonylation of terminal alkynes in 2020, Cited 44. Safety of 1,4-Dioxa-8-azaspiro[4.5]decane. The Name is 1,4-Dioxa-8-azaspiro[4.5]decane. Through research, I have a further understanding and discovery of 177-11-7.

Oxidative carbonylation using CO/O-2 is an attractive strategy to construct carbonyl compounds, but the explosive limit of the gas mixture hampers its application. Now, this safety issue is overcome in the aminocarbonylation of alkynes by replacing the external oxidant O-2 by electrochemistry facilitating a mild and safe reaction. Palladium-catalysed oxidative carbonylation using oxygen as the oxidant is an economical approach; however, the gas mixture of CO and air has an explosive limit of 12.5-74.0% that could hamper extensive application of this process. Herein we report an electrochemical aminocarbonylation of alkynes under atmospheric pressure in an undivided cell without an external oxidant. The transformation has a broad substrate scope (83 examples) that involves primary amines and ammonium salts. Furthermore, mechanistic studies through cyclic voltammetry, in situ infrared and quick-scanning X-ray absorption fine structure spectroscopy reveal the reasons for this protocol proceeding smoothly under electrochemical conditions.

Welcome to talk about 177-11-7, If you have any questions, you can contact Zeng, L; Li, HR; Hu, JC; Zhang, DC; Hu, JY; Peng, P; Wang, SC; Shi, RY; Peng, JQ; Pao, CW; Chen, EL; Lee, JF; Zhang, H; Chen, YH; Lei, AW or send Email.. Safety of 1,4-Dioxa-8-azaspiro[4.5]decane

Reference：
Piperidine – Wikipedia,
Piperidine | C5H7510N – PubChem

SDS of cas: 177-11-7. In 2020 ORG LETT published article about C-H FUNCTIONALIZATION; PHOTOCATALYTIC OXIDATION; REGIOSELECTIVE AMINATION; IMIDYL RADICALS; IODINE; ELECTROSYNTHESIS; GENERATION; AMIDATION; CHEMISTRY; ARENES in [Lei, Ning; Shen, Yanling; Li, Yujun; Tao, Pan; Yang, Liquan; Su, Zhishan; Zheng, Ke] Sichuan Univ, Coll Chem, Key Lab Green Chem & Technol, Minist Educ, Chengdu 610064, Peoples R China in 2020, Cited 72. The Name is 1,4-Dioxa-8-azaspiro[4.5]decane. Through research, I have a further understanding and discovery of 177-11-7.

An environmentally friendly electrochemical approach for iodoamination of various indole derivatives with a series of unactivated amines, amino acid derivatives, and benzotriazoles (more than 80 examples) has been developed. This strategy was further applied in late-stage functionalization of natural products and pharmaceuticals and gram-scale synthesis and radiosynthesis of I-13(1)-labeled compounds. Fundamental insights into the mechanism of the reaction based on control experiments, density functional theory calculation, and cyclic voltammetry are provided.

Welcome to talk about 177-11-7, If you have any questions, you can contact Lei, N; Shen, YL; Li, YJ; Tao, P; Yang, LQ; Su, ZS; Zheng, K or send Email.. SDS of cas: 177-11-7

Reference：
Piperidine – Wikipedia,
Piperidine | C5H7510N – PubChem

Formula: C7H13NO2. Cao, Q; Nicholson, WI; Jones, AC; Browne, DL in [Cao, Qun; Nicholson, William I.; Jones, Andrew C.; Browne, Duncan L.] Cardiff Univ, Sch Chem, Main Bldg,Pk Pl, Cardiff CF10 3EQ, S Glam, Wales published Robust Buchwald-Hartwig amination enabled by ball-milling in 2019, Cited 35. The Name is 1,4-Dioxa-8-azaspiro[4.5]decane. Through research, I have a further understanding and discovery of 177-11-7.

An operationally simple mechanochemical method for the Pd catalysed Buchwald-Hartwig amination of arylhalides with secondary amines has been developed using a Pd PEPPSI catalyst system. The system is demonstrated on 30 substrates and applied in the context of a target synthesis. Furthermore, the performance of the reaction under aerobic conditions has been probed under traditional solution and mechanochemical conditions, the observations are discussed herein.

Welcome to talk about 177-11-7, If you have any questions, you can contact Cao, Q; Nicholson, WI; Jones, AC; Browne, DL or send Email.. Formula: C7H13NO2

Reference：
Piperidine – Wikipedia,
Piperidine | C5H7510N – PubChem

In 2019 ADV SYNTH CATAL published article about CATALYZED HYDROAMINATION; INTERNAL ALKYNES; H BONDS; CARBOAMINATION; ALKENES; GENERATION; ACID; HETEROCYCLES; CYCLIZATION; INSERTION in [Cui, Jian-Fang; Tang, Rishi; Yang, Bin; Lai, Nathanael Chun-Him; Jiang, Jia-Jun; Deng, Jie-Ren; Wong, Man-Kin] Hong Kong Polytech Univ, State Key Lab Chem Biol & Drug Discovery, Dept Appl Biol & Chem Technol, Hong Kong, Peoples R China; [Cui, Jian-Fang] Southern Univ Sci & Technol, Dept Chem, Shenzhen, Peoples R China in 2019, Cited 62. The Name is 1,4-Dioxa-8-azaspiro[4.5]decane. Through research, I have a further understanding and discovery of 177-11-7. Product Details of 177-11-7

This work first discloses a new strategy for amine activation to give reactive amine anion by in situ generated iminium cation-amine anion pair through decomposition of sterically hindered aminals. Utilizing this strategy, a highly regio- and chemoselective cyclocarboamination of ortho-formyl phenylacetylenes with secondary amines has been realized under metal-free mild reaction conditions. The cyclocarboamination with notably tunable product profiles depends on the separation and purification procedure, a diverse range of 1, 3-diamino-1H-indenes (essentially reactive enamines) and 3-amino-1-indanones were obtained, respectively. Moreover, using iodine as an electrophile to couple with various ortho-formyl phenylacetylenes and secondary amines, a series of 3-amino-2-iodo-1-indanones were efficiently achieved with four bonds (C=O, C-C, C-N and C-I) formation in an one-pot three-component reaction. These results demonstrated an unprecedented methodology for the construction of highly functionalized 1H-indene and 1-indanone compounds.

Welcome to talk about 177-11-7, If you have any questions, you can contact Cui, JF; Tang, RS; Yang, B; Lai, NCH; Jiang, JJ; Deng, JR; Wong, MK or send Email.. Product Details of 177-11-7

Reference：
Piperidine – Wikipedia,
Piperidine | C5H7510N – PubChem

Elagamy, A; Althagafi, I; Pratap, R in [Elagamy, Amr; Pratap, Ramendra] Univ Delhi, Dept Chem, North Campus, Delhi 110007, India; [Althagafi, Ismail] Umm Al Qura Univ, Fac Sci, Chem Dept, Mecca 21955, Saudi Arabia published Step-wise and one-pot synthesis of highly substituted conjugated trienes from 2-oxobenzo [h]chromenes/2H-pyran-2-ones in 2021, Cited 36. Safety of 1,4-Dioxa-8-azaspiro[4.5]decane. The Name is 1,4-Dioxa-8-azaspiro[4.5]decane. Through research, I have a further understanding and discovery of 177-11-7.

A mild and efficient route for the synthesis of conjugated trienes via nitroethane-mediated ring contraction of 2-oxobenzo[h]chromenes/2H-pyran-2-ones followed by decarboxylative rearrangement of the obtained spirobutenolides and butenolides is described. The (E)-isomer of trienes was obtained by step-wise and one-pot approaches from 2-oxobenzo[h]chromenes. Butenolides 4a-l as new substrates have been developed for the construction of trienes. The mixture of the (E)- and (Z)-isomers of spirobutenolides undergoes decarboxylative rearrangement in the presence of sodium ethoxide as a base to yield the (E)-isomer of trienes, while the (E)-isomer of butenolides reacts to give a mixture of (2E,4E)- and (2E,4Z)-isomers of trienes in an almost steady ratio of 45 : 55 or 1 : 1.2. The structure and geometry of the obtained butenolides and trienes were confirmed by single-crystal X-ray analysis.

Welcome to talk about 177-11-7, If you have any questions, you can contact Elagamy, A; Althagafi, I; Pratap, R or send Email.. Safety of 1,4-Dioxa-8-azaspiro[4.5]decane

Reference：
Piperidine – Wikipedia,
Piperidine | C5H7510N – PubChem

HPLC of Formula: C7H13NO2. In 2019 CHEM COMMUN published article about PALLADIUM-CATALYZED AMINATION; CARBON-SULFUR; COOPERATIVE CATALYSIS; EFFICIENT SYNTHESIS; METAL-COMPLEXES; ACTIVATION; FUNCTIONALIZATION; COBALT; BENZOXAZOLES; CYCLIZATION in [Lv, Zongchao; Wang, Huamin; Quan, Zhicong; Gao, Yuan; Lei, Aiwen] Wuhan Univ, Coll Chem & Mol Sci, Inst Adv Studies, Wuhan 430072, Hubei, Peoples R China; [Lei, Aiwen] Jiangxi Normal Univ, Natl Res Ctr Carbohydrate Synth, Nanchang 330022, Jiangxi, Peoples R China in 2019, Cited 68. The Name is 1,4-Dioxa-8-azaspiro[4.5]decane. Through research, I have a further understanding and discovery of 177-11-7.

Research on the cleavage of C-C bonds has been well developed. By comparison with this, the activation of C-S bonds remains challenging. Herein, dioxygen-triggered oxidative cleavage of C-S bonds has been achieved, delivering a series of N-containing heterocyclic compounds that are frequently found in pesticides and pharmaceuticals. Additionally, the potential utility of this protocol was further demonstrated by a gram-scale experiment. Mechanistically, dioxygen plays a key role in the cleavage of C-S bonds towards C-N bond formation.

Welcome to talk about 177-11-7, If you have any questions, you can contact Lv, ZC; Wang, HM; Quan, ZC; Gao, Y; Lei, AW or send Email.. HPLC of Formula: C7H13NO2

Reference：
Piperidine – Wikipedia,
Piperidine | C5H7510N – PubChem

I found the field of Chemistry very interesting. Saw the article Ni/NHC-catalyzed cross-coupling of methyl sulfinates and amines for direct access to sulfinamides published in 2019. HPLC of Formula: C7H13NO2, Reprint Addresses Chen, JZ (corresponding author), Zhejiang Univ, Coll Pharmaceut Sci, 866 Yuhangtang Rd, Hangzhou, Zhejiang, Peoples R China.. The CAS is 177-11-7. Through research, I have a further understanding and discovery of 1,4-Dioxa-8-azaspiro[4.5]decane

It was reported to develop a simple and convenient method for the Ni/NHC-catalyzed cross-coupling of methyl sulfinates and amines without an acid/base to afford secondary or tertiary sulfinamides in moderate to good yields. The method can provide the desired products with broad substrate scope, good chemoselectivity and good functional group compatibility. The presented approach may enrich the Nil NHC catalyst system and promote the applications of methyl sulfinates in the organic sulfur chemistry. (C) 2019 Elsevier Ltd. All rights reserved.

Welcome to talk about 177-11-7, If you have any questions, you can contact Li, GJ; Pan, YL; Liu, YL; Xu, HF; Chen, JZ or send Email.. HPLC of Formula: C7H13NO2

Reference：
Piperidine – Wikipedia,
Piperidine | C5H7510N – PubChem