Methanol for Hydrogenation and Methylation of Carbonyls: Advances and Challenges in Homogeneous Catalysis.

Autor: Padmor, Manohar Shivaji, Pratihar, Sanjay
Zdroj: Synlett; Dec2024, Vol. 35 Issue 20, p2346-2366, 21p
Abstrakt: The catalytic dehydrogenation of methanol to give formaldehyde or formic acid, followed transfer hydrogenation and/or tandem (de)hydrogenation for the hydrogenation and C-methylation of carbonyls, offers advantages over traditional methods, including milder reaction conditions, improved safety, greater selectivity, and enhanced sustainability. This account provides a comprehensive overview of homogeneous catalysts reported for the transfer hydrogenation and C-methylation of various substrates, including ketones, chalcones, esters, and amides, using methanol as both a hydrogen donor and methylation source. We provide specific examples and mechanistic insights for each strategy, offering a thorough and concise overview of recent advancements from 2014 to 2024. 1 Introduction 2 Methanol Activation Strategies 3 Hydrogenation of Carbonyls 4 Methylation of Carbonyls 5 Outlook and Summary [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index