Preparation of 2-Iodo-1,3-butadienes from 1-Trimethylsilyl-2,3-butadienes and their Functionalizations
摘要:
Successive treatment of 1-trimethylsilyl-2,3-butadienes with iodine and tetra-n-butylammonium fluoride in the same flask affords 2-iodo-1,3-butadienes in good yields and their palladium-catalyzed carbonylation and alkynylation allows introduction of ester and alkynyl groups to the 2-position bearing an iodine atom leading to various 2,3-disubstituted 1,3-butadienes. (C) 1997 Elsevier Science Ltd. All rights reserved.
Electrophilic Fluorodesilylation of Allenylmethylsilanes: A Novel Entry to 2-Fluoro-1,3-dienes
作者:M Carmen Pacheco、Véronique Gouverneur
DOI:10.1021/ol047319z
日期:2005.3.1
Various fluorodienes were prepared by treatment of the corresponding allenylmethylsilanes with Selectfluor. This is the first route to these compounds not based on the use of a fluorinated building block. The reaction allows the preparation of 2-fluoro-1,3-dienes with several substitution patterns, including di- and trisubstituted compounds.