The organocatalytic enantioselective Friedel–Crafts alkylation of phloroglucinol derivatives with enals is reported, providing general access to the benzylic chiral centers shown in a variety of phloroglucinol natural products. The synthetic utility is demonstrated by the very concise asymmetric total synthesis of aflatoxins B2.
据报道,
间苯三酚衍
生物与烯醛进行有机催化对映选择性弗里德尔-克来夫斯烷基化反应,使人们能够广泛接触各种
间苯三酚天然产物中所示的苄基手性中心。
黄曲霉毒素B 2的非常简明的不对称全合成证明了其合成效用。