C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/308.5
C07D 277/32 (2006.01) C07D 277/14 (2006.01) C07D 277/16 (2006.01) C07D 277/34 (2006.01) C07D 277/36 (2006.01) C07D 277/42 (2006.01)
Patent
CA 1116609
NOVEL PROCESS FOR PREPARING THIAZOLE DERIVATIVES ABSTRACT OF THE DISCLOSURE A novel process for preparing thiazole derivatives of the formula I: Image I wherein A is oxygen, sulfur, imino, alkylimino or alkenyl- imino; and R' is alkyl, phenyl, or substituted phenyl which consists of (1) a reaction of 1-alkoxy-2-halogenoethyl isothicyanate with a compound of the formula III: R'AH where- in A and R' each has the same meaning as defined above and (2) an alcohol-elimination reaction of the thiazoline derivative yielded in the above step (1).
320315
Johnson Douglas S. Q.c.
Shionogi & Co. Ltd.
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