Reaction of 4-substituted benzaldehydes and acetophenones with chloroacetonitrile

1988 ◽  
Vol 53 (4) ◽  
pp. 822-832 ◽  
Author(s):  
Jiří Svoboda ◽  
Zuzana Kocfeldová ◽  
Jaroslav Paleček
Keyword(s):  
Potassium Carbonate ◽  
Alkaline Hydrolysis ◽  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Homogeneous Solution ◽  
Substituted Benzaldehydes ◽  
Hydrolysis Of

Under conditions of phase-transfer catalysis or in homogeneous solution of potassium tert-butoxide the title compounds give stereoisomeric mixtures of substituted 2,3-epoxy nitriles III and IV. Alkaline hydrolysis of epoxy nitriles IV afforded the corresponding 2-arylpropanals in low yields. On treatment with methanol and potassium carbonate, epoxy nitriles III and IV were converted into epoxy esters in good yields.

Studies on the Depolymerization of Poly(ethylene terephthalate) Using 1, 1, 2, 2-Tetramethyl-1-Benzyl-2-n-Octyl Ethylene-1, 2-Diammonium Bromide Chloride as Phase Transfer Catalyst

2014 ◽  
Vol 938 ◽  
pp. 164-169
Author(s):  
V. Lakshmi Narayanan ◽  
M.J. Umapathy
Keyword(s):  
Alkaline Hydrolysis ◽  
Zinc Sulfate ◽  
Ethylene Terephthalate ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Dimethyl Benzyl ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Hydrolysis Of ◽  
New Phase

1,4-Bis (dimethyl) benzyl octyl ethylene diammonium bromide chloride has been synthesized, characterized and applied as new phase transfer catalyst in the alkaline hydrolysis of PET leading to depolymerisation. The new phase transfer catalyst has been compared with the alkaline hydrolysis of PET using zinc sulfate as catalyst in the depolymerization. It was found that the newly synthesized phase transfer catalyst exhibited excellent conversion than the alkaline hydrolysis of PET using zinc sulfate as catalyst.

Alkylation of pyrazoles with ethyl chloroacetate under phase-transfer catalysis and hydrolysis of the esters obtained

2014 ◽  
Vol 84 (8) ◽  
pp. 1641-1643 ◽  
Author(s):  
V. I. Rstakyan ◽  
A. E. Hakobyan ◽  
G. B. Zakaryan ◽  
S. S. Hayotsyan ◽  
H. S. Attaryan ◽  
...  
Keyword(s):  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Ethyl Chloroacetate ◽  
Hydrolysis Of

A Green and Highly Efficient Protocol for Hydrolysis of Substituted Benzyl Chloride Using Ionic Liquid [bmim]BF4 as Phase-Transfer Catalyst

2010 ◽  
Vol 113-116 ◽  
pp. 1990-1992 ◽  
Author(s):  
Yong Zhang ◽  
Hong Jun Zang ◽  
Bo Wen Cheng
Keyword(s):  
Ionic Liquid ◽  
Aqueous Solutions ◽  
Benzyl Alcohol ◽  
Alkaline Hydrolysis ◽  
Benzyl Chloride ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Present Procedure ◽  
Hydrolysis Of ◽  
By Products

Alkaline hydrolysis of substituted benzyl chloride (BzCl) in ionic liquid [bmim]BF4 is investigated. The presence of the [bmim]BF4, increased the solubility of substituted BzCl in aqueous solutions and increased the selectivity toward the formation of benzyl alcohol. The main advantages of the present procedure are shorter time, higher yields, benignancy to environment and no by-products.

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