期刊
SYNLETT
卷 -, 期 12, 页码 1735-1739出版社
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0030-1260935
关键词
acyltrifluoroacetones; phosphonylation; triethyl borate; fluorinated phosphonate; fluorinated phosphinate; fluorinated phosphine oxides
资金
- Deutsche Forschungsgemeinschaft [DFG 436 RUS 113/911/0-1]
Ethyl 1-trifluoromethyl-1-hydroxy-3-oxo-phosphonates, the related (methyl)phosphinates and (phenyl) phosphinates, and phosphine oxides were obtained in good yield via direct phosphonylation of acyltrifluoroacetones with diethyl phosphite, ethyl (methyl) phosphonite, ethyl (phenyl) phosphonite, and diphenylphosphine oxide in the presence of triethyl borate. The subsequent dehydration of the selected phosphonates and phosphinates proceeds smoothly affording previously unknown diethyl 1,2-unsaturated 1-trifluoromethyl-3-oxophosphonates, ethyl 1-trifluoromethyl-3-oxo(methyl)-, and ethyl 1-trifluoromethyl-3-oxo(phenyl) phosphinates in good yields.
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