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Updated: Jun 25, 2026

Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
Direct conversion of alcohols to acetals and H(2) catalyzed by an acridine-based ruthenium pincer complex
Chidambaram Gunanathan1, Linda J W Shimon, David Milstein
1Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel.
Abstract:
The crystallographically characterized ruthenium complex RuHCl(A-(i)Pr-PNP)(CO) (1) [A-(i)Pr-PNP = 4,5-bis-(diisopropylphosphinomethyl)acridine], which bears a nonplanar acridine moiety, catalyzes in a neutral medium the transformation of primary alcohols to the corresponding acetals with the liberation of H(2). In the presence of base, complex 1 catalyzes the dehydrogenative coupling of alcohols to form esters. Acetal formation may involve hemiacetal dehydration to form an enol ether followed by alcohol addition to the double bond.
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