C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/242.13
C07D 475/04 (2006.01)
Patent
CA 1234570
Abstract A process for the preparation of 5,6,7,8- tetrahydrofolic acid which comprises dissolving and/or suspending folic acid or dihydrofolic acid in an aqueous solution containing an inorganic base, and bringing the resulting solution or suspension into contact with hydrogen in the presence of a noble metal catalyst while maintaining its pH at 5-9, thereby catalytically hydrogenating the folic acid or dihydrofolic acid into 4,5,6,7-tetrahydrofolic acid.
493563
Hirai Yutaka
Nagayoshi Eri
Torisu Masaaki
Mitsui Toatsu Chemicals Inc.
Sim & Mcburney
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