Published December 31, 1964 | Version v1
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Thiopegan Derivatives. Part XXXI. Unambiguous Synthesis of 2-Substituted-9,10-thiopegan Derivatives

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2-Substituted-9,10-thiopega-2,10-dien-4-ones have been obtained by cyclisation of the corresponding 1-phenscl-2-mercapto-tetrahydroquinazolin-4-ones, which, in turn, have been obtained from N-phenacyl-anthranilic acids and KSCN in presence of HCI.

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