A NEW CONVENIENT SYNTHESIS OF 1,2'-BIAZULENES BY PHOTOLYSIS OF 2-DIAZO-1,3-DICYANOAZULEN-6(2H)-ONE WITH AZULENE DERIVATIVES

Authors
LIN SJ JIANG SY HUANG TC DAI CS TSAI PF TAKESHITA H LIN YS NOZOE T
Citation
Sj. Lin et al., A NEW CONVENIENT SYNTHESIS OF 1,2'-BIAZULENES BY PHOTOLYSIS OF 2-DIAZO-1,3-DICYANOAZULEN-6(2H)-ONE WITH AZULENE DERIVATIVES, Bulletin of the Chemical Society of Japan, 70(12), 1997, pp. 3071-3074
Citations number
17
Journal title
Bulletin of the Chemical Society of Japan → ACNP
ISSN journal
00092673
Volume
70
Issue
12
Year of publication
1997
Pages
3071 - 3074
Database
ISI
SICI code
0009-2673(1997)70:12<3071:ANCSO1>2.0.ZU;2-E
Abstract
A photolysis of 2-diazo-1,3-dicyanoazulen-6(2H)-one in the presence of azulene derivatives in anhydrous ethyl acetate solution afforded 1,2' -biazulene derivatives, which are otherwise difficult to obtain, in go od yields, nearly 90% or more. Accompanying by-products, 1,3-dicyanoaz ulen-6-ol and 2,5'-biazulene derivatives, were also characterized.