Regiochemistry of the Reaction of 2-Acylcyclohexanones with Trimethyl Orthoformate: A Convenient One-Pot Method to Obtain 7,7-Dimethoxy Alkanoate Methyl Esters
作者:Marcos A. P. Martins、Giovani P. Bastos、Adilson P. Sinhorin、Alex F. C. Flores、Helio G. Bonacorso、Nilo Zanatta
DOI:10.1055/s-1999-2725
日期:1999.6
The regiochemistry of the reaction of 2-acylcyclohexanones [containing 2-acyl groups, C(O)R, where R = Me, Et, CH2Ph, CF3, Ph and OMe] with trimethyl orthoformate to obtain the corresponding acetal derivative is reported. Compounds with R = alkyl groups showed to be convenient synthons for a one-pot method to obtain 7,7-dimethoxy alkanoate methyl esters under mild conditions. The results of the reaction of 2-acetylcyclopentanone, -heptanone and -octanone with trimethyl orthoformate are also reported.
报道了2-酰基环己酮(含有2-酰基团,C(O)R,其中R = Me、Et、CH2Ph、CF3、Ph和OMe)与三甲氧基甲烷反应生成相应缩醛衍生物的区域化学结果。R为烷基的化合物被证明是温和条件下通过一步法便捷地获得7,7-二甲氧基烷酸甲酯的前体。同时,也报道了2-乙酰基环戊酮、庚酮和辛酮与三甲氧基甲烷反应的结果。