Observation of new cycloisomerization pattern of 1,5-bisallenes. Catalyst and substituent effects.
In this paper a new cycloisomerization pattern of 1,5-bisallenes based on the catalyst and substituent effects has been reported. A range of seven-membered cross-conjugated trienes 7 would be obtained efficiently via the beta-H elimination and reductive elimination of the intermediates formed via cycloisomerization.
Lu
Ping
P
State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, P. R. China.
Ma
Shengming
S