+++Thanks_morua_1 article from tet lett

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One-pot cyclization of alkoxy-3-aminoindan-1-ones. Original Research Article
Tetrahedron Letters, Volume 32, Issue 44, 28 October 1991, Pages 6327-6328
Patrick Dallemagne, Sylvain Rault, Juan Carlos Pilo, Marie Paule Foloppe, Max Robba

DOI:

http://dx.doi.org/10.1016/0040-4039(91)80160-8

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http://www.sciencedirect.com/science/article/pii/0040403991801608

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