scholarly journals Hydrolysis of electrophilic olefins. I. Kinetic studies on the hydrolysis of p-dimethylaminobenzylidene derivatives of active methylene compounds.

1981 ◽  
Vol 29 (10) ◽  
pp. 2743-2752
Author(s):  
TSUNEJI UMEDA ◽  
EIZO HIRAI
Keyword(s):  
Kinetic Studies ◽  
Active Methylene Compounds ◽  
Hydrolysis Of ◽  
Derivatives Of ◽  
Active Methylene

Polarographic half-wave potentials and ultraviolet absorption spectra of some conjugated heteroenoid compounds

1969 ◽  
Vol 47 (21) ◽  
pp. 4076-4083 ◽  
Author(s):  
H. L. Holmes ◽  
D. J. Currie
Keyword(s):  
Absorption Spectra ◽  
Functional Groups ◽  
Ultraviolet Absorption ◽  
Half Wave ◽  
Active Methylene Compounds ◽  
Derivatives Of ◽  
Active Methylene ◽  
Hammett Relationship

The half-wave potentials of phenyl substituted derivatives for each series of conjugated heteroenoid compounds studied follow a Hammett relationship. The effect of change in the functional groups and of increase in length of the conjugated system upon half-wave potentials and ultraviolet absorption maxima is briefly discussed. Terephthalylidene derivatives of active methylene compounds function like the cinnamylidene derivatives.

Acylaminoacetyl derivatives of active methylene compounds.3.C-Acylation Reactionsviathe Hippuric Acid Azlactone

1994 ◽  
Vol 31 (5) ◽  
pp. 1145-1150 ◽  
Author(s):  
Stylianos Hamilakis ◽  
Demetrios Kontonassios ◽  
Constantine Sandris
Keyword(s):  
Hippuric Acid ◽  
Active Methylene Compounds ◽  
Derivatives Of ◽  
Active Methylene

scholarly journals A new and facile synthetic approach to substituted 2-thioxoquinazolin-4-ones by the annulation of a pyrimidine derivative

2010 ◽  
Vol 6 ◽  
pp. 1056-1060 ◽  
Author(s):  
Nimalini Devi Moirangthem ◽  
Warjeet Singh Laitonjam
Keyword(s):  
Ethyl Cyanoacetate ◽  
Pyrimidine Derivative ◽  
Synthetic Approach ◽  
Facile Synthesis ◽  
Benzenoid System ◽  
Active Methylene Compounds ◽  
Pyrimidine Moiety ◽  
Derivatives Of ◽  
Active Methylene

A new and facile synthesis of 2-thioxoquinazolin-4-ones by introducing a benzenoid system in the pyrimidine moiety by reacting ethoxymethylene derivatives of 1,3-diarylthiobarbituric acids (DTBA) with active methylene compounds, such as malononitrile and ethyl cyanoacetate, in presence of ZnCl2 has been developed.

Synthesis and chemical reactions of some conjugated heteroenoid compounds

1967 ◽  
Vol 45 (9) ◽  
pp. 1001-1006 ◽  
Author(s):  
R. F. Silver ◽  
K. Ann Kerr ◽  
Peggy D. Frandsen ◽  
Sheila J. Kelley ◽  
H. L. Holmes
Keyword(s):  
Chemical Reactions ◽  
Room Temperature ◽  
Cyano Group ◽  
Ethyl Cyanoacetate ◽  
Geometric Configuration ◽  
Cinnamic Acids ◽  
Active Methylene Compounds ◽  
Derivatives Of ◽  
Active Methylene

A series of 326 3-benzal-2,4-pentanediones, 2-benzal-1,3-indanediones, ethyl benzalaceto-acetates, diethyl benzalmalonates, ethyl benzalcyanoacetates, benzalmalononitriles, benzalcyanoacetamides, benzalcyanoacetanilides, benzalmalonamides, β-nitrostyrenes, β-nitropropenylbenzenes, β-nitrobutenylbenzenes, and derivatives of a number of cinnamic acids have been synthesized and their geometric configuration discussed. Aniline, p-toluidine, and n-butanethiol have been added to some of these compounds. The aniline adducts have also been prepared from benzylideneaniline and the active methylene compounds. The aniline adducts of those containing a cyano group are not stable and lose aniline at room temperature. The structure of the compound prepared from benzylideneaniline and ethyl cyanoacetate and melting at 140 °C has been established.

Sign in / Sign up

Export Citation Format

Share Document