Benzilic acid rearrangements in the reactions of aryl vicinal tricarbonyl derivatives with aldehyde schiff bases
作者:Harry H. Wasserman、David S. Ennis、Chi B. Vu、Gayle K. Schulte
DOI:10.1016/s0040-4039(00)79459-7
日期:1991.10
Reactions of aryl and hetero vicinal tricarbonyl derivatives with aldehyde Schiff bases of the general structure RCH2CHO lead to pyrrolinone derivatives by benzilic acid-related rearrangements, driven, most probably, by iminium ion intermediates.
The conversion of car☐ylic acids to keto phosphorane precursors of 1,2,3-vicinal tricarbonyl compounds
作者:Harry H. Wasserman、David S. Ennis、Charles A. Blum、Vincent M. Rotello
DOI:10.1016/s0040-4039(00)61111-5
日期:1992.9
Acyl phosphoranylidines react with acid chlorides or anhydrides in the presence of bis(trimethylsilyl)acetamide (BSA), or couple directly with carboxylic acids activated by EDCI to give keto phosphoranes 1.
A practical procedure for the selective oxidation of phosphorus keto ylides to vicinal tricarbonyls using moist magnesium monoperoxyphthalate (MMPP) in dichloromethane at ambient temperature
作者:Kieseung Lee、Jin-Mo Im
DOI:10.1016/s0040-4039(00)02280-2
日期:2001.2
Unsupported, moist magnesium monoperoxyphthalate (MMPP) was found to oxidize various phosphorus keto ylides to the corresponding vicinal tricarbonyls selectively in dichloromethane at ambient temperature in good to excellent yields. (C) 2001 Elsevier Science Ltd. All rights reserved.