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Synthesis 1994; 1994(4): 363-365
DOI: 10.1055/s-1994-25475
short paper
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A Facile Synthesis of 3-Substituted Isothiochroman

Yao-Chang Xu* , Elaine Lebeau, Giorgio Attardo, Tibor Breining
  • *BioChem Pharma Inc., 531 des Prairies Blvd., Laval, Quebec, Canada, H7V 1B7
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Publication Date:
17 September 2002 (online)

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3-Carbonyl substituted isothiochromans (3,4-dihydro-1H-2-benzothiopyrans) 3 were synthesized in moderate yields in a one-pot process from dibromide 1 and 2-mercaptocarbonyl compounds 2. This method could be also extended to the synthesis of tetracyclic 1-H-anthraceno [2,3-c]thiopyran 5.