Dipolar cycloaddition reaction of diazoalkanes with trimethylsilyl substituted alkynes. Steric control of regiochemistry by the trimethylsilyl group

DOI: 10.1016/S0040-4020(01)86680-1

Source and publish data:

Tetrahedron p. 1145 - 1162 (1990)

Update date:2022-08-02

Topics:

Authors:

Padwa, Albert

Wannamaker, M. Woods

Read Full Text PDF DownLoad Join now for total 90,000,000 free articles

Article abstract of DOI:10.1016/S0040-4020(01)86680-1

A study of the cycloaddition behavior of several trimethylsilyl substituted alkynes with 2-diazopropane and diazomethane has been carried out. Aryl or alkyl ethynyl sulfones react to give 5-sulfonyl substituted 3H-pyrazoles which extrude nitrogen on photo

Full text of DOI:10.1016/S0040-4020(01)86680-1

Products guided by the article

Product name:1-acetyl-4-chloro-5,5-dimethyl-4-(p-tolylsulfonyl)-2-pyrrazoline

Cas No:128641-87-2

R&D Labs maybe for 128641-87-2

Hangzhou Eastbiopharm Co.,Ltd.

Contact:+86-571-88931780

Address:Hangzhou,China
Li's chemicals

Contact:+86-15850770348

Address:51 OF XIANGFANGCUN ROAD, Nanjing 210002, China
Acros Pharmatech Limited

website:http://www.acrospharmatech.com

Contact:+1-3234804688

Address:Flat/RM 1502,Easey Commercial building 253-261 Hennessy Road,Wanchai，HongKong
Synchem Pharma Co.,Ltd(expird)

Contact:+0086-21-61984905-1

Address:Building 60,Zimian Park, LongYang industrial Area, 1515Nong，Yuandong Road Fengxian District, Shanghai ,China
Wuhan Kemi-Works Chemical Co., Ltd

website:http://www.kemiworks.com

Contact:86-27-85736489

Address:Rm. 1503, No. 164, Jianghan North Rd., Wuhan, 430022 China

Relevant to this article

Enantioselective Synthesis of γ-Oxycarbonyl Motifs by Conjugate Addition of Photogenerated α-Alkoxy Radicals

Doi:10.1021/acs.orglett.1c01790
(2021)
Stereoselective synthesis of trisubstituted tetrahydrofurans by radical cyclisation reaction using a hypophosphite salt. Application to the total synthesis of (±)-dihydrosesamin

Doi:10.1016/S0040-4020(02)00113-8
(2002)
Doi:10.1021/ja00904a041
(1963)
Studies on topical antiinflammatory corticosteroids. III. Synthesis and vasoconstrictive activity of 11β,17α,21-trihydroxy-2'-phenyl-2'H-2,4-pregnadieno[3,2-c]pyrazol-20-one derivatives

Doi:10.1248/cpb.34.1613
(1986)
Doi:10.1021/jo01071a013
(1960)
Synthesis of alpha- and beta-amino ketone analogs of amino acids as antibacterial agents.

Doi:10.1002/jps.2600510205
(1962)

Article Doi