Azulenes and related substances-XIV: Synthesis of some benzotropylium salts and benzotropones

Srivastava, K. C. ; Sukh Dev, (1972) Azulenes and related substances-XIV: Synthesis of some benzotropylium salts and benzotropones Tetrahedron, 28 (4). pp. 1083-1091. ISSN 0040-4020

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Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0040-4020(72)80167-4

Abstract

In connection with the synthesis of system 1, preparation of certain benzotropylium salts and benzotropones has been investigated. Action of NBS on benzocycloheptatriene yielded 1,2-benzo-1,3,5-cycloheptatrien-7-yl-N-succinimide, a ready substrate for benzotropylium ion generation. Selenium dioxide oxidation of benzocycloheptatriene yielded both 2,3-benzotropone and 4,5-benzotropone. Similar oxidation of 4'-methoxy-1,2-benzo-1,3,5-cycloheptatriene furnished all three possible methoxybenzotropones.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:54502
Deposited On:11 Aug 2011 14:31
Last Modified:11 Aug 2011 14:31

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