March 18, 2013

CAS databases provide millions of journal article references from more than 10,000 major scientific journals worldwide, patent and patent family references from 63 patent authorities around the world, and other reputable web sources.

The following patent record is from the CAplusSM database.


Patent Number: US 8338596
Title: Process for the preparation of 5-substituted-8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-amines
Inventor(s): Bott, Craig; Hamilton, Christopher; Roth, Gary
Patent Assignee(s): Dow Agrosciences LLC, USA
Source: PCT Int. Appl., 21pp. CODEN: PIXXD2
Language: English


5-Substituted-8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-amines (I, wherein  X is halo or OR; and R is C1-4 alkyl) are manufactured from 2-substituted-4-amino-5-methoxypyrimidines via formation and cyclization  of a ((pyrimidinylamino)hydroxyimino)methylcarbamate in a process that avoids hydrazine and cyanogen halide.

Please note:  Abstracts for patent records in CAplus are routinely enhanced to better describe the claimed invention.

 View the full-text here.

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