Synthesis and alkali metal reduction of 1,1-diarylspiro[2.4]hepta-4,6-dienes. Generation of homopentafulvene dianions
作者:Takeshi Kawase、Hiroyuki Kurata、Shin-ichi Fujino、Tatsuya Ekinaka、Masaji Oda
DOI:10.1016/s0040-4039(00)60872-9
日期:1992.11
Reaction of 6,6-diarylfulvene dianions with dichloromethane yields 1,1-diaryl-spiro[2.4]hepta-4,6-dienes, and reduction of the diphenylspiroheptadiene with lithiummetal or lithiumnaphthalene cleanly generates a novel homopentafulvene dianion.