A general preparation of (Z)-1-fluorostilbene derivatives for the design of conformationally restricted peptidomimetics
摘要:
The preparation of (Z)-1-fluoro-2-bromostyrenes provides a general route for the formation of (Z)-1-fluorostilbene derivatives as configurationally stable spacial linkers for the design of conformationally restricted peptidomimetics. Palladium-catalyzed aryl Suzuki and Stille cross-coupling reactions have been surveyed to proceed with complete retention of fluoroalkene geometry, and permit the direct incorporation of a variety of aryl and heteroaromatic substituents. (C) 2009 Elsevier Ltd. All rights reserved.
Chemistry of organo halogenic molecules, LXXV. Polymer-supported hydrogen fluoride
作者:Ana Gregorčič、Marko Zupan
DOI:10.1016/s0022-1139(00)81318-4
日期:1984.3
polymer supported hydrogen fluoride in methylene chloride proceeds with Markovnikov type regioselectivity. Fluorination and halofluorination of norbornene with xenondifluoride or N-bromosuccinimide or N-chlorosuccinimide in the presence of polymer- supported hydrogen fluoride resulted in up to five products, with a large increase in halonortricyclane formation, compared to reactions in the presence