Catalytic hydrogenation of doubly unsaturated compounds having a conjugated system of double bonds

1953 ◽  
Vol 1 (3) ◽  
pp. 409-417
Author(s):  
B. A. Kazansky ◽  
N. I. Popova
Keyword(s):  
Catalytic Hydrogenation ◽  
Double Bonds ◽  
Unsaturated Compounds

Metal-free carbocatalyst for catalytic hydrogenation of N-containing unsaturated compounds

2019 ◽  
Vol 377 ◽  
pp. 199-208 ◽  
Author(s):  
Zhaolin He ◽  
Jin Liu ◽  
Qijun Wang ◽  
Meng Zhao ◽  
Zhipan Wen ◽  
...  
Keyword(s):  
Catalytic Hydrogenation ◽  
Metal Free ◽  
Unsaturated Compounds

scholarly journals Selective catalytic hydrogenation of the N-acyl and uridyl double bonds in the tunicamycin family of protein N-glycosylation inhibitors

2017 ◽  
Vol 70 (12) ◽  
pp. 1122-1128 ◽  
Author(s):  
Neil PJ Price ◽  
Michael A Jackson ◽  
Karl E Vermillion ◽  
Judith A Blackburn ◽  
Jiakun Li ◽  
...  
Keyword(s):  
Catalytic Hydrogenation ◽  
Double Bonds

The Ozonization of Unsaturated Compounds. III. The Addition of Ozone to Internal and External Double Bonds in Butadiene Rubber

1959 ◽  
Vol 32 (1) ◽  
pp. 284-287 ◽  
Author(s):  
A. I. Yakubchik ◽  
N. G. Kasatkina ◽  
T. E. Pavlovskaya
Keyword(s):  
Quantitative Determination ◽  
Butadiene Rubber ◽  
Double Bonds ◽  
Ozone Absorption ◽  
Unsaturated Compounds

Abstract 1. It was established that the curves of ozone absorption by butadiene rubbers do not show breaks. 2. Sodium butadiene rubber was ozonized 25, 50, 75 and 100%. From the quantitative determination of the external double bonds which add ozone it was established that there is no strict selectivity in the ozonization of the double bonds of rubber: the external double bonds are ozonized more rapidly than the internal and their ozonization is completed earlier than the ozonization of the internal double bonds.

scholarly journals Intermolecular addition reactions of N-alkyl-N-chlorosulfonamides to unsaturated compounds

2015 ◽  
Vol 11 ◽  
pp. 1226-1234 ◽  
Author(s):  
Gerold Heuger ◽  
Richard Göttlich
Keyword(s):  
Addition Reactions ◽  
Redox Catalysis ◽  
Double Bonds ◽  
Concerted Mechanism ◽  
Unsaturated Compounds ◽  
Excellent Yield ◽  
Styrene Derivatives ◽  
Polar Mechanism

N-Alkyl-N-chlorosulfonamides add to alkenes under copper(I) catalysis. In reactions of styrene derivatives with terminal double bonds the addition products were obtained in excellent yield and high regioselectivity. Lower yields are obtained in addition reactions to non-aromatic alkenes. The reaction most likely proceeds via a redox catalysis and amidyl radicals, a concerted mechanism has been ruled out and a polar mechanism via chloronium ions would lead to the opposite regiochemistry.

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