Process for preparing 5-(2-thienyl)hydantoin

Details Process for preparing 5-(2-thienyl)hydantoin Process for preparing 5-(2-thienyl)hydantoin

1979-03-09

1980-01-22

Trousof, Natalie

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D40904

Patent

active

041851536

ABSTRACT:
A process for preparing 5-(2-thienyl)hydantoin by reacting glyoxylic acid, urea and thiophene in the presence of an acid at an elevated temperature. The hydantoin of high purity can be readily prepared in good yields.

REFERENCES:
patent: 2366221 (1945-01-01), Spurlock
patent: 2557904 (1951-06-01), Britton et al.
patent: 3271389 (1966-09-01), Johnson et al.
Ware Chem. Rev. 1950, vol. 46, pp. 406-425.

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