Ring-retentive deprotonation of cyclopropene-3-carboxamides
摘要:
A remarkable stability of anionic species generated from cyclopropene-3-carboxamides toward ring-opening is demonstrated. The resulting cyclopropenyllithium species can be reacted with a range of electrophiles, which allows for efficient introduction of additional substituents at C1 of the strained ring. (C) 2010 Elsevier Ltd. All rights reserved.
Palladium-Catalyzed Hydrophosphorylation and Hydrophosphinylation of Cyclopropenes
作者:Bassam K. Alnasleh、William M. Sherrill、Michael Rubin
DOI:10.1021/ol8011138
日期:2008.8.7
Novel transition-metal-catalyzed addition of P-H entities across the cyclopropene double bond has been developed. This transformation allows for mild and efficient preparation of phosphorus-containing cyclopropanes in good yields and high degrees of diastereoselectivity.