A convenient preparative method of obtaining 2,2,4,5,5-pentaalkyl-δ- valerolactones 2a-d or 2,2,4,4-tetraalkyl-γ-butyrolactones 4a-e by the acid-catalyzed lactonization of 3-cyclopropylalkanoic acids, and for obtaining bicyclo-γ-lactones 6a-d from bicyclic 2-cyclopropylalkanoic acids 5a-d is presented.
Nickel-catalyzed directed sulfenylation of sp<sup>2</sup> and sp<sup>3</sup> C–H bonds
作者:Xiaohan Ye、Jeffrey L. Petersen、Xiaodong Shi
DOI:10.1039/c5cc01970b
日期:——
Directed sulfenylation of both sp2 and sp3 C–H bonds was achieved through nickel catalyzed directed C–S bond formation, giving the desired product in good to excellent yield (up to 90%).