- Reactions of 1,2-bis(trimethylsilyloxy)cycloalkenes with the diethyl acetals of aldehydes
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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 skeletal rearrangement with Amberlyst 15 resin in TFA.
- Gao, Fuye,Burnell, D. Jean
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p. 356 - 359
(2007/10/03)
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