asymmetric [3+2] cycloaddition of enals with masked cinnamates opens a new short entry to adipic acid derivatives in moderate to good yields and high stereoselectivities. The utility of the protocol is showcased by the one-pot asymmetric synthesis of 3S,4S-disubstituted adipic acids, precursors for the synthesis of 3,4-disubstituted gababutins, which are used for the treatment of various diseases.
一锅到
己二酸:NHC催化的不对称[3 + 2]
环戊烯与掩蔽的
肉桂酸酯的加成反应为
己二酸衍
生物的新进入提供了一条捷径,中度到良好的产率和高的立体选择性。通过一锅式不对称合成3 S,4 S-二取代的
己二酸(用于合成3,4-二取代的gababutins的前体,用于治疗各种疾病)展示了该协议的实用性。