Reactions of 1,2-Bis(trimethylsilyloxy)cycloalkenes with the Diethyl Acetals of Aldehydes
作者:Fuye Gao、D. Jean Burnell
DOI:10.1021/jo051683+
日期:2006.1.1
Lewis acid-mediated reactions of 1,2-bis(trimethylsilyloxy)cyclobutene with acetals derived from a variety of aldehydes, followed by treatment with Amberlyst 15 resin in TFA, yielded 1,3-cyclopentanedione products, but reactions with 3,3-dimethyl-1,2-bis(trimethylsilyloxy)cyclobutene led to 1,2-cyclopentanediones. Reactions of 1,2-bis(trimethylsilyloxy)cyclopentene gave intermediates that did not undergo
Two Rearrangement Pathways in the Geminal Acylation of 2-Methoxyoxazolidines Leading to Substituted 1,4-Oxazines
作者:Jonathan R. Moulins、Jeremy A. Hughes、Lauren E. Doyle、T. Stanley Cameron、D. Jean Burnell
DOI:10.1002/ejoc.201403371
日期:2015.2
position of the carbonyl group in the products depended on whether or not water was present during the ring-expanding acylmigration step. The route lacking water during the acylmigration step was best conducted in one pot. The addition of water effected cleavage of a silyloxy group in the intermediate during the initial Mukaiyama aldol reaction prior to the acylmigration.
Diverse carbocyclic systems using geminal acylation as a key process
作者:Fuye Gao、D. Jean Burnell
DOI:10.1016/j.tetlet.2007.09.089
日期:2007.11
Geminal acylation has been employed in the syntheses of a diquinane, a 1,3-diketone with herbicidal and pesticidal activity, and compounds with carbocyclic [5.16.5] and [5.17.5] skeletons. (c) 2007 Elsevier Ltd. All rights reserved.