Vapor-phase reduction of aldehydes and ketones with 2-propanol was carried out over hydrous zirconium oxide. The reduction proceeded efficiently to give corresponding alcohols. The oxide worked continuously for 10 h without being inactivated.
Synthetic Potential of the Reaction of Allylic Phosphonium Ylides with α, β-Unsaturated Carbonyl Compounds
作者:David F. Schneider、Abraham C. Venter
DOI:10.1080/00397919908086106
日期:1999.4
Abstract The reaction of triphenylphosphonium-2-propenylide (14) with mesityl oxide (9) is shown to proceed via initial Michael addition followed by trans ylidation and an intramolecular Wittig condensation to yield 1, 5, 5-trimethyl-1, 3-cyclohexadiene (10) as the reaction product.