ISSN:
0018-019X
Schlagwort(e):
Chemistry
;
Organic Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The Carbo(3-phenylpyrazol-5-yl-hydrazonoyl) halides 1a,b react with active methylene compounds to yield the 1-(3-phenylpyrazol-5-yl)-pyrazole derivatives 2a-k (Scheme 1). The acyclic intermediates 3a,b could be isolated from reaction of 1a,b with acetylacetone, thus establishing the substitution mechanism for these reactions.Compounds 1a, b reacted with carbon disulfide, phenyl isothiocyanate, methyl cyanide, and with p-chlorobenzaldehyde to yield the corresponding heterocyclic derivatives 5-8, respectively (Scheme 2).The behaviour of compounds 2 with hydrazine hydrate is reported.
Zusätzliches Material:
2 Tab.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/hlca.19770600709