Process for producing thiophene derivatives

Details Process for producing thiophene derivatives Process for producing thiophene derivatives

1994-07-07

1996-03-12

Ramsuer, Robert W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D49504

Patent

active

054987210

ABSTRACT:
A process for producing a thiophene derivative represented by a general formula (2) involves catalytically reducing a compound represnted by the general formula (1) with hydrogen in a solvent mixture of at least one of alcohol and water in the presence of a palladium catalyst soluble in organic solvents. A thiophene derivative is useful in preparing biotin (Vitamin H).

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Johnstone, Robert A. W. and Wilby, Anna H. Chem. Rev. 1985 85, 129-170.
Tour, James M.; Copper, Joel P. and Pendalwar, Shekhar L. J. Org. Chem. 1990, 55, 3452-3453.
Stern, E. W.; Maples, P. K. J. Catal. 1972, 27 (1) 120-133.
Chemical Abstracts, vol. 81, No. 23, 1974(5) 15223k.

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