ChemInform Abstract: CHEMISTRY OF 1,8-SUBSTITUTED NAPHTHALENES. I. CROTONIC CONDENSATION IN PERIHYDROXYACYLNAPHTHALENES

1979 ◽  
Vol 10 (1) ◽  
Author(s):  
V. V. MEZHERITSKII ◽  
V. V. TKACHENKO ◽  
O. N. ZHUKOVSKAYA ◽  
G. N. DOROFEENKO
Keyword(s):  
Crotonic Condensation

ChemInform Abstract: ClSiMe3. A Reagent for the Crotonic Condensation.

ChemInform ◽  
1990 ◽  
Vol 21 (19) ◽  
Author(s):  
S. I. ZAV'YALOV ◽  
O. V. DOROFEEVA ◽  
E. E. RUMYANTSEVA
Keyword(s):  
Crotonic Condensation

ChemInform Abstract: TRIMETHYLCHLOROSILANE - A NEW REAGENT FOR CROTONIC CONDENSATION

1985 ◽  
Vol 16 (32) ◽  
Author(s):  
S. I. ZAV'YALOV ◽  
G. V. DOROFEEVA ◽  
O. K. TAGANOVA
Keyword(s):  
Crotonic Condensation

ClSiMe3 As a reagent for the crotonic condensation

1989 ◽  
Vol 38 (10) ◽  
pp. 2163-2165
Author(s):  
S. I. Zav'yalov ◽  
O. V. Dorofeeva ◽  
E. E. Rumyantseva
Keyword(s):  
Crotonic Condensation

scholarly journals Synthesis of 4,5-dihydro-1H-pyrazole derivatives based on 3-acetyl-5-nitropyridines

2021 ◽  
Author(s):  
Alena Stalinskaya ◽  
Daria Weber ◽  
Tulegen Seilkhanov ◽  
Ivan Kulakov
Keyword(s):  
Acetic Acid ◽  
Hydrazine Hydrate ◽  
Aromatic Aldehydes ◽  
Pyrazole Derivatives ◽  
Crotonic Condensation ◽  
Derivatives Of

Abstract Claisen-Schmidt-type aldol-crotonic condensation of 3-acetyl-5-nitropyridine derivatives with various aromatic aldehydes was used for the preparation of pyridylchalcones. Cyclization of the latter with hydrazine hydrate in acetic acid afforded the corresponding N-acetyl derivatives of 4,5-dihydro-1H-pyrazole.

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