852936-80-2Relevant articles and documents
Synthesis of γ-alkylidenebutenolides by formal [3+2] cyclizations of 1,5- and 2,4-bis(trimethylsilyloxy)-1,3,5-hexatrienes with oxalyl chloride
Freifeld, Ilia,Bose, Gopal,Eckardt, Tobias,Langer, Peter
, p. 351 - 355 (2007/10/03)
Lewis acid-catalyzed cyclizations of 1,5-bis(trimethylsilyloxy)-1,3,5- hexatrienes and 1,3,5-tris(trimethylsilyloxy)-1,3,5-hexatrienes with oxalyl chloride resulted in the formation of polyunsaturated γ- alkylidenebutenolides, while the cyclization of a 2