Trapping of 1,2-benzo-1,3,4-cycloheptatr
โ
Yasar Kemal Yildiz; Turan Ozturk; Metin Balci
๐
Article
๐
1999
๐
Elsevier Science
๐
French
โ 549 KB
8-bromo-6.7~hydrobenzocycloheptene 16 and 9-bromo-6,7-benzocyclohep@diene 17 have been syntheeizd via a new and simple method, and their allene mactions wxe stodied. Treatment of 16 with a base in the presenw of DPIBF (diphenyli sobenzofuran) gave the strained bicyclic allene 9, which underwent a cy