Synthesis of exo-and endo-6,7-Epoxytropanes. -The formation and cyclization of N-protected 2,3-epoxy-4-amino-cycloheptanol derivatives provides a practical route to the title compounds. Whereas the epoxidation of cyclooct-2-enol proceeds with high anti-stereoselectivity as demonstrated in the prece
β¦ LIBER β¦
ChemInform Abstract: 6-exo versus 7-endo Iodolactonizations of 2-(Alkynyl)phenylacetic Acids.
β Scribed by Mohamed Gomaa Ali Badry; Benson Kariuki; David W. Knight; F. K. Mohammed
- Publisher
- John Wiley and Sons
- Year
- 2009
- Weight
- 20 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0931-7597
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β¦ Synopsis
Abstract
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable via the βReferencesβ option.
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## Abstract In the presence of Bi(OβTf)~3~ alkynylamides of type (I) are found to undergo 6βexo cyclization to afford piperazinones like (II).