作者: Jessica D. Townsend , Wayne Kelley , Kelly L. Rose , Deborah A. Schady , Jennifer R. Downs
DOI: 10.1080/00397910008087396
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摘要: Abstract C(α),O-oximes were dilithiated with lithium diisopropylamide and condensed three α,β-unsaturated ketones: (2E)-1,3-diphenyl-2-propen-1-one, or (1E, 4E)-1,5-diphenyl-1,4-pentadien-3-one, (3E)-4-phenyl-3-buten-2-one, followed by immediate acid cyclization to variously substituted 4,5-dihydroisoxazoles: 4,5-dihydro-5-phenyl-5-(2-phenylethenyl)isoxazoles, 4,5-dihydro-5-methyl-5-(2-phenylethenyl)isoxazoles, 4,5-dihydro-5,5-di-(2-phenylethenyl)-isoxazoles.