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Reactions of 2 chloro n n diethyl 1 1 2 trifluoro ethylamine with alcohols part 2 bridgehead fluorination of gibberellins


, : Reactions of 2 chloro n n diethyl 1 1 2 trifluoro ethylamine with alcohols part 2 bridgehead fluorination of gibberellins. Journal of the Chemical Society Perkin Transactions I (5): 512-515

Four new fluoro-gibberellins, i.e, 2.beta.,7.alpha.-difluoro-4a.alpha.-hydroxy-1.beta.-methyl-8-methylenegibb-3-ene-1.alpha.,10.beta.-dicarboxylic acid 1,4a-lactone, 4.beta.,7.alpha.-difluoro-4a.alpha.-hydroxy-1.beta.-methyl-8-methylenegibb-2-ene-1.alpha.,10.beta.-dicarboxylic acid 1,4a-lactone and the 8-epimers of 7.alpha.-fluoro-4a.alpha.-hydroxy-1.beta.,8-dimethylgibb-2-ene-1.alpha.,10.beta.-dicarboxylic acid 1,4a-lactones and of 7.alpha.-fluoro-4a.alpha.-hydroxy-1.beta.,8-dimethylgibbane-1.alpha.,10.beta.-dicarboxylic acid 1,4a-lactone, containing bridgehead fluorine atoms were prepared by the fluorination of esters of gibberellins with the title reagent, followed by de-esterification.

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