Basic hydrolysis of cinnamyl chloride

1982 ◽  
Vol 47 (1) ◽  
pp. 290-295
Author(s):  
Libor Červený ◽  
Marie Křivská ◽  
Antonín Marhoul ◽  
Vlastimil Růžička
Keyword(s):  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Cinnamyl Alcohol ◽  
Triethylbenzylammonium Chloride ◽  
Basic Hydrolysis ◽  
Hydrolysis Of

Basic hydrolysis of 3-chloro-1-phenyl-1-propene (cinnamyl chloride) to 3-phenyl-2-propen-1-ol (cinnamyl alcohol) and 1-phenyl-2-propen-1-ol was studied. The effects of the base type, presence of triethylbenzylammonium chloride as a phase transfer catalyst, and temperature were examined.

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.

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.

scholarly journals First and efficient synthesis of 4-[((3,4-dihydroxybenzoyl)-oxy)methyl]-phenyl-β-D-glucopyranoside, an antioxidant from Origanum vulgare

2016 ◽  
Vol 81 (1) ◽  
pp. 23-28
Author(s):  
Yu-Wen Li ◽  
Cui-Li Ma
Keyword(s):  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Efficient Synthesis ◽  
Origanum Vulgare ◽  
Triethylbenzylammonium Chloride ◽  
Polyphenolic Glycoside ◽  
Hydroxybenzyl Alcohol ◽  
Methyl Phenyl

4-(3,4-Dihydroxybenzoyloxymethyl)phenyl-O-?-D-glucopyranoside (DBPG, 1 ), a polyphenolic glycoside previously isolated from Oregano(Origanum vulgare L.) in 0.08% isolated yield, was synthesized in five chemical steps with 41.4% overall yield. First, 4-(hydroxymethylphenyl)-2,3,4,6-tetra-O-acetyl-b-D-glucopyranoside 4 was obtained in 53.2% yield by selective glycosylation of 4-hydroxybenzyl alcohol 3 with 2,3,4,6-tetra-O-acetyl-?-D-glucopyranosyl bromide 2 in a mixture of chlorobenzene and aqueous CsOH using triethylbenzylammonium chloride (TEBAC) as a phase transfer catalyst. Then, this product was esterified with 3,4-diacetoxylbenzoyl chloride 7 to generate 4-(3,4-diacetoxybenzoyloxy-methyl) phenyl 2,3,4,6-tetra-O-acetyl-b-D-glucopyranoside 8 in 95% yield. Finally, selectively global deacetylation of 8 was performed in a mixture of dibutyltin oxide and methanol under reflux to afford 1 in 94.8% yield.

A FACILE SYNTHESIS AND REACTIONS OF AMINO SELENOLO[2,3-b]PYRIDINE CARBOXYLATE

2015 ◽  
Vol 12 (1) ◽  
pp. 3910-3918 ◽  
Author(s):  
Dr Remon M Zaki ◽  
Prof Adel M. Kamal El-Dean ◽  
Dr Nermin A Marzouk ◽  
Prof Jehan A Micky ◽  
Mrs Rasha H Ahmed
Keyword(s):  
Biological Activity ◽  
Carbonyl Compounds ◽  
Mass Spectra ◽  
The Other ◽  
Pyridine Derivatives ◽  
Facile Synthesis ◽  
High Biological Activity ◽  
Basic Hydrolysis ◽  
Pyridine Carboxylate ◽  
Hydrolysis Of

 Incorporating selenium metal bonded to the pyridine nucleus was achieved by the reaction of selenium metal with 2-chloropyridine carbonitrile 1 in the presence of sodium borohydride as reducing agent. The resulting non isolated selanyl sodium salt was subjected to react with various α-halogenated carbonyl compounds to afford the selenyl pyridine derivatives 3a-f  which compounds 3a-d underwent Thorpe-Ziegler cyclization to give 1-amino-2-substitutedselenolo[2,3-b]pyridine compounds 4a-d, while the other compounds 3e,f failed to be cyclized. Basic hydrolysis of amino selenolo[2,3-b]pyridine carboxylate 4a followed by decarboxylation furnished the corresponding amino selenolopyridine compound 6 which was used as a versatile precursor for synthesis of other heterocyclic compound 7-16. All the newly synthesized compounds were established by elemental and spectral analysis (IR, 1H NMR) in addition to mass spectra for some of them hoping these compounds afforded high biological activity.

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