ISSN:
0170-2041
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Enehydrazines, 32. - An Access to 3-Hydroxymethyl-1,5,6,7-tetrahydro-4H-indazol-4-ones5-Methyl-1,3-cyclohexanedione is C-acylated with benzyloxyacetimidazolide to yield 2b which with hydrazines gives the 1,5,6,7-tetrahydro-4H-indazol-4-ones 3a-d. Hydrogenolysis leads to the title compounds 4a-d. The acetate 5a from 3d is hydrogenolyzed to give 5b and is further transformed into the carbamate 6.
Notes:
5-Methyl-1,3-cyclohexandion wird von Benzyloxyessigsäure-imidazolid zu 2b C-acyliert, das mit Hydrazinen die 1,5,6,7-Tetrahydro-4H-indazol-4-one 3a-d ergibt. Deren Hydrogenolyse führt zu den Titelverbindungen 4a-d. Das Acetat 5a aus 3d wird zu 5b hydrogenolysiert und weiter in das Carbamat 6 umgewandelt.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.198219821010
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