Issue 7, 1989
From the journal:

Journal of the Chemical Society, Perkin Transactions 1

Total synthesis of sophorapterocarpan A, maackiain, and anhydropisatin: application of a 1,3-Michael-Claisen annulation to aromatic synthesis

Yutaka Ozaki,   Keiko Mochida  and  Sang-Won Kim  

Abstract

A new synthetic route to the pterocarpans using a [3C + 3C] annulation is described. 1,3-Michael-Claisen condensation of α-methylene-γ-butyrolactones with α-sulphur-substituted ketones gives 6-membered rings which have been converted into the pterocarpan framework by aromatization. Sophorapterocarpan A, maackiain, and anhydropisatin have been prepared employing this new aromatic synthesis.

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Article information

DOI
https://doi.org/10.1039/P19890001219
Article type
Paper

J. Chem. Soc., Perkin Trans. 1, 1989, 1219-1224

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Total synthesis of sophorapterocarpan A, maackiain, and anhydropisatin: application of a 1,3-Michael-Claisen annulation to aromatic synthesis

Y. Ozaki, K. Mochida and S. Kim, J. Chem. Soc., Perkin Trans. 1, 1989, 1219 DOI: 10.1039/P19890001219

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