Vinylsilane-terminated cycloacylation: A general synthetic approach to four- to six-membered cyclic ketones and its regiochemical features
摘要:
Intramolecular acylations of m-trimethylsilyl-m-alkenoyl chlorides (m = 4 and 5) are described which afford the expected alpha-alkylidenecycloalkanone and/or the unexpected cycloalkenone, depending markedly upon the substitution pattern on the vinylsilane moiety and/or the chain length (m).