An efficient and novel approach to the synthesis of tetrahydrophenanthro[4,3-b]thiophenes |
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| Authors: | Ramendra Pratap |
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| Institution: | Medicinal and Process Chemistry Division, Central Drug Research Institute, Lucknow 226001, India |
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| Abstract: | An elegant approach to the synthesis of 2,3,6,7-tetrahydrophenanthro4,3-b]thiophenes has been described through base catalyzed ring transformation of 4-sec-amino-2-oxo-5,6-dihydro-2H-benzoh]chromene-3-carbonitriles with tetrahydrothiophen-3-one in very good yields. |
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| Keywords: | Tetrahydrophenanthro[4 3-b]thiophenes 2-Oxobenzo[h]chromenes Ring transformation |
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