Selective addition of unsaturated carboxylic acids to terminal acetylenes catalyzed by bis(.eta.5-cyclooctadienyl)ruthenium(II)-tri-n-butylphosphine. A novel synthesis of enol esters

1985 ◽  
Vol 50 (9) ◽  
pp. 1566-1568 ◽  
Author(s):  
Takeaki Mitsudo ◽  
Yoji Hori ◽  
Yoshihisa Watanabe
Keyword(s):  
Carboxylic Acids ◽  
Novel Synthesis ◽  
Unsaturated Carboxylic Acids ◽  
Enol Esters ◽  
Terminal Acetylenes ◽  
Selective Addition

Ruthenium-catalyzed selective addition of carboxylic acids to alkynes. A novel synthesis of enol esters

1987 ◽  
Vol 52 (11) ◽  
pp. 2230-2239 ◽  
Author(s):  
Takeaki Mitsudo ◽  
Yoji Hori ◽  
Yasushi Yamakawa ◽  
Yoshihisa Watanabe
Keyword(s):  
Carboxylic Acids ◽  
Novel Synthesis ◽  
Enol Esters ◽  
Selective Addition

NOVEL SYNTHESIS OF ENOL ESTERS THROUGH SILVER-CATALYZED REACTION OF ACETYLENIC COMPOUNDS WITH CARBOXYLIC ACIDS

1981 ◽  
Vol 10 (5) ◽  
pp. 641-644 ◽  
Author(s):  
Yoshio Ishino ◽  
Ikuzo Nishiguchi ◽  
Satoshi Nakao ◽  
Tsuneaki Hirashima
Keyword(s):  
Carboxylic Acids ◽  
Novel Synthesis ◽  
Enol Esters ◽  
Acetylenic Compounds

Ruthenium complex catalyzed selective addition of carboxylic acids to acetylenes giving enol esters

1986 ◽  
Vol 27 (19) ◽  
pp. 2125-2126 ◽  
Author(s):  
Take-aki Mitsudo ◽  
Yoji Hori ◽  
Yasushi Yamakawa ◽  
Yoshihisa Watanabe
Keyword(s):  
Carboxylic Acids ◽  
Ruthenium Complex ◽  
Enol Esters ◽  
Selective Addition

Visible-light-mediated difluoromethylphosphonation of alkenes for the synthesis of CF2P-containing heterocycles

2019 ◽  
Vol 6 (24) ◽  
pp. 3939-3943
Author(s):  
Qiang Yang ◽  
Qing-Qing Lin ◽  
Hou-Ying Xing ◽  
Zhi-Gang Zhao
Keyword(s):  
Visible Light ◽  
Carboxylic Acids ◽  
Novel Synthesis ◽  
Unsaturated Carboxylic Acids ◽  
Nucleophilic Cyclization

Novel synthesis of CF2P-containing heterocycles has been developed via visible-light-mediated nucleophilic cyclization of unsaturated carboxylic acids, alcohol and sulfonamides.

Perturbation theory of substituent effect. Importance of the field effect in transmission of the substituent effect

1980 ◽  
Vol 45 (6) ◽  
pp. 1655-1661 ◽  
Author(s):  
Robert Ponec
Keyword(s):  
Perturbation Theory ◽  
Carboxylic Acids ◽  
Quantum Chemical ◽  
Substituent Effect ◽  
Field Effect ◽  
Adequate Description ◽  
Meta Position ◽  
Unsaturated Carboxylic Acids

Various quantum chemical approaches to the problem of transmission of the substituent effect were compared. It was shown that inclusion of the electronic repulsion (field effect) was necessary to give a true picture of differences in ρ constants for reactions of the cis and trans isomers of substituted unsaturated carboxylic acids; the same holds for an adequate description of transmission of the substituent effect from the meta position on a given skeleton.

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