Boronate urea activation of nitrocyclopropane carboxylates.

Organic letters (2012-01-03)
Sonia S So, Tyler J Auvil, Victoria J Garza, Anita E Mattson
摘要

Boronate ureas operate as catalysts for the activation of nitrocyclopropane carboxylates in nucleophilic ring-opening reactions. A variety of amines were found to open the urea-activated nitrocyclopropane carboxylates, generating highly useful nitro ester building blocks in good yields. Standard manipulations allow access to a wide range of valuable compounds from the ring-opened products with direct applications in bioactive target synthesis.

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产品描述

Sigma-Aldrich
Potassium 3-ethoxycarbonylbenzoyltrifluoroborate
Sigma-Aldrich
Mattson Boronate Urea Pinacol Ester