通过在三氟乙酸酐(TFAA)中用H 2 SO 4磺化3 - R -1-金刚烷酸1,获得先前未知的α-(3- R-金刚烷基)磺基乙酸2。在1-金刚烷酸1a的情况下,使用〜1当量的H 2 SO 4仅导致1-金刚烷酸2a,而反应物过量时,金刚烷叔C–H键的羟基化也会发生。假定由H 2 SO 4原位生成双(三氟乙酰基)硫酸盐TFAA负责磺化和氧化步骤。通过修饰羧基,磺酸和叔金刚烷OH-基团,将金刚烷基化的磺基乙酸用于制备一系列衍生物。由于使用TFAA作为介质,因此可以通过一锅法直接从酸1中获得一系列磺基乙酸的衍生物。一些合成的化合物具有抗HSV活性。
Chemical transformations of tetracyclo[3.3.1.13,7.01,3]decane (1,3-dehydroadamantane): II. Reaction of 1,3-dehydroadamantane with N,N-dialkylcarboxamides
摘要:
Alkylation of N,N-dialkylcarboxamides with 1,3-dehydroadamantane has been accomplished for the first time. The reaction involves the C-H bond in the alpha-position with respect to the carbonyl group and provides a convenient one- step preparation of substituted carboxylic acid amides containing an 1-adamantyl substituent and a pharmacophoric group in the amide moiety.