Bis(alkylthio)carbenes as Novel Reagents for Organic Synthesis
摘要:
Bis(alkylthio)carbenes have been shown to be a useful class of reactive intermediates for applications to organic synthesis. Substituted hydroindolanes, isatins and hydroquinolones can be prepared by the addition of these carbenes to vinyl isocyanates. (C) 2000 Elsevier Science Ltd. All rights reserved.
Total Synthesis of (±)-Phenserine <i>via</i> [4+1] Cyclization of a Bis(alkylthio)carbene and an Indole Isocyanate
作者:James H. Rigby、Shyama Sidique
DOI:10.1021/ol062915+
日期:2007.3.1
[structure: see text]. A totalsynthesis of acetylcholine blocking agent, phenserine, has been achieved by employing a [4+1] cyclization between an appropriately substituted indole isocyanate and a bis(alkylthio)carbene.
[4 + 1] Cycloaddition of Bis(alkylthio)carbenes with Vinyl Isocyanates. Total Synthesis of (±)-Mesembrine
作者:James H. Rigby、Weitong Dong
DOI:10.1021/ol005706c
日期:2000.6.1
[reaction: see text] The Sceletium alkaloid mesembrine has been synthesized in 13% overall yield by a sequence featuring a [4 + 1] cycloaddition of a bis(alkylthio)carbene with a functionalized vinylisocyanate.
Synthesis of Highly Substituted Cyclopentenones via the [4 + 1] Cycloaddition of Nucleophilic Carbenes and Vinyl Ketenes
作者:James H. Rigby、Zhengqiang Wang
DOI:10.1021/ol0272141
日期:2003.2.1
[reaction: see text] Vinylketenes have been shown to undergo [4 + 1] cycloaddition with a variety of nucleophilic carbenes to deliver highly substituted cyclopentenones as products.
Total synthesis of (±)-debromoflustramine B via [4+1] cyclization of a bis(alkylthio)carbene and an indole isocyanate
作者:Saptarshi De、James H. Rigby
DOI:10.1016/j.tetlet.2013.06.119
日期:2013.8
An efficient totalsynthesis of (±)-debromoflustramine B and (±)-debromoflustramide B has been achieved, through a novel [4+1] cyclization of an indole isocyanate and bis(alkylthio)carbene.
Rapid construction of isatin derivatives via addition of bis(alkylthio)carbenes to aryl isocyanates
作者:James H. Rigby、M.Diana Danca
DOI:10.1016/s0040-4039(99)01392-1
日期:1999.9
Thermally induced cyclization between bis(alkylthio)carbenes, derived from the corresponding oxadiazolines, and substituted aryl isocyanates provides access to a variety of isatin derivatives with good efficiency. (C) 1999 Elsevier Science Ltd. All rights reserved.