Selective catalytic addition of hydrogen halide and carboxylic acids and phenols to methyl esters of 1-alkyl-3-cyclopropenecarboxylic acids

1984 ◽  
Vol 33 (9) ◽  
pp. 1968-1968
Author(s):  
E. A. Shapiro ◽  
M. N. Protopopova ◽  
O. M. Nefedov
Keyword(s):  
Carboxylic Acids ◽  
Methyl Esters ◽  
Hydrogen Halide ◽  
Catalytic Addition

Regioselective catalytic addition of terminal acetylenes to methyl esters of 1-alkylcyclopropene-3-carboxylic acids

1985 ◽  
Vol 34 (10) ◽  
pp. 2225-2228 ◽  
Author(s):  
M. N. Protopopova ◽  
E. A. Shapiro ◽  
Yu. V. Tomilov ◽  
I. E. Dolgii ◽  
O. M. Nefedov
Keyword(s):  
Carboxylic Acids ◽  
Methyl Esters ◽  
Terminal Acetylenes ◽  
Catalytic Addition

scholarly journals Propylphosphonic acid anhydride–mediated amidation of Morita–Baylis–Hillman–derived indolizine-2-carboxylic acids

2021 ◽  
pp. 174751982098715
Author(s):  
Khethobole C Sekgota ◽  
Michelle Isaacs ◽  
Heinrich C Hoppe ◽  
Ronnett Seldon ◽  
Digby F Warner ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Carboxylic Acids ◽  
Coupling Agent ◽  
Methyl Esters ◽  
Acid Anhydride

Propylphosphonic acid anhydride has been successfully used as a coupling agent in the synthesis of a series of indolizine-2-carboxamido derivatives from indolizine-2-carboxylic acid and its 3-acetylated analogue. The acid substrates were obtained by saponification of the corresponding methyl esters produced, in turn, selectively and efficiently, by time-controlled cyclisation of a single Morita–Baylis–Hillman adduct. Various amino and hydrazino compounds with medicinal potential have been used to prepare indolizine-2-carboxamido and hydrazido derivatives.

ChemInform Abstract: Catalytic Hydrogenation of Methyl Esters of Some 1H-Pyrazoline-3-carboxylic Acids.

ChemInform ◽  
2010 ◽  
Vol 41 (29) ◽  
pp. no-no
Author(s):  
V. A. Gorpinchenko ◽  
D. V. Petrov ◽  
S. S. Lozhkin ◽  
E. G. Galkin ◽  
V. A. Dokichev
Keyword(s):  
Carboxylic Acids ◽  
Catalytic Hydrogenation ◽  
Methyl Esters

ChemInform Abstract: Synthesis of 6-Acyl-7-aryl-4,7-dihydrotetrazolo[1,5-a]pyrimidine-5-carboxylic Acids and Their Methyl Esters

ChemInform ◽  
2008 ◽  
Vol 39 (10) ◽  
Author(s):  
V. L. Gein ◽  
L. F. Gein ◽  
E. P. Tsyplyakova ◽  
O. S. Panova
Keyword(s):  
Carboxylic Acids ◽  
Methyl Esters

Synthesis of 6-Acyl-7-aryl-4,7-dihydrotetrazolo[1,5-a]pyrimidine-5-carboxylic acids and their methyl esters

2007 ◽  
Vol 43 (9) ◽  
pp. 1382-1386 ◽  
Author(s):  
V. L. Gein ◽  
L. F. Gein ◽  
E. P. Tsyplyakova ◽  
O. S. Panova
Keyword(s):  
Carboxylic Acids ◽  
Methyl Esters

A Convenient Preparation of Methyl Esters from Carboxylic Acids

1982 ◽  
Vol 12 (6) ◽  
pp. 453-456 ◽  
Author(s):  
Erno Mohacsi
Keyword(s):  
Carboxylic Acids ◽  
Methyl Esters ◽  
Convenient Preparation

Déplacements homolytiques intramoléculaires. 4. Thermolyse du perpentène-4 oate de tert-butyle dans les acides et leurs derivés: préparation de γ-butyrolactones substituées en 4 par un groupe comportant une fonction ester, acide ou nitrile

1985 ◽  
Vol 63 (9) ◽  
pp. 2522-2528 ◽  
Author(s):  
A. Kharrat ◽  
C. Gardrat ◽  
B. Maillard
Keyword(s):  
Carboxylic Acids ◽  
Methyl Esters ◽  
Homolytic Reaction ◽  
Alkanoic Acids

The thermolysis of tert-butylperpent-4-enoate in various solvents ZH (carboxylic acids, anhydrides, methyl esters, nitriles) led to γ-butyrolactones 4-substituted by the group ZCH2 with good yields. The acidic treatment of the lactones 4 and 6 derived from non-functionalized alkanoic acids and methyl esters gave respectively the isomerized lactones 5 and 7, increasing the synthetic interest of the studied homolytic reaction.

ChemInform Abstract: SYNTHESIS OF METHYL ESTERS OF CYCLOPROPYLCYCLOPROPENE-3-CARBOXYLIC ACIDS AND THEIR CHEMICAL TRANSFORMATIONS

1982 ◽  
Vol 13 (19) ◽  
Author(s):  
E. A. SHAPIRO ◽  
G. V. LUN'KOVA ◽  
A. O. NEFEDOV ◽  
I. E. DOLGII ◽  
O. M. NEFEDOV
Keyword(s):  
Carboxylic Acids ◽  
Methyl Esters ◽  
Chemical Transformations
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