ChemInform Abstract: A Thermodynamic Preference of Chiral cis-γ,δ-Epimino-(E)-. alpha.,β-Unsaturated Esters over Other Stereoisomers: Synthetically Useful Pd(0)-Catalyzed Equilibrated Reactions of Aziridines Bearing an α,β-Unsaturated Ester Group.

ChemInform ◽  
2010 ◽  
Vol 27 (32) ◽  
pp. no-no
Author(s):  
T. IBUKA ◽  
M. AKAJI ◽  
N. MIMURA ◽  
H. HABASHITA ◽  
K. NAKAI ◽  
...  
Keyword(s):  
Ester Group ◽  
Unsaturated Ester ◽  
Unsaturated Esters

scholarly journals THREE NEW DAPHNIPHYLLUM ALKALOIDS WITH AN αβ,γδ-UNSATURATED ESTER GROUP FROMDAPHNIPHYLLUM GRACILEGAGE

1980 ◽  
Vol 9 (4) ◽  
pp. 393-396 ◽  
Author(s):  
Shosuke Yamamura ◽  
J. A. Lamberton ◽  
Masatake Niwa ◽  
Keiko Endo ◽  
Yoshimasa Hirata
Keyword(s):  
Ester Group ◽  
Unsaturated Ester

scholarly journals A New Long-Chain Unsaturated Ester and Other Constituents of Hypericum tomentosum

2012 ◽  
Vol 7 (1) ◽  
pp. 1934578X1200700
Author(s):  
Ouassila Touafek ◽  
Zahia Kabouche ◽  
Joël Boustie ◽  
Christian Bruneau
Keyword(s):  
Fatty Acid ◽  
Endemic Species ◽  
Spectroscopic Analysis ◽  
Fatty Ester ◽  
Light Petroleum ◽  
Unsaturated Ester ◽  
Unsaturated Esters ◽  
First Time ◽  
Long Chain

Three long-chain unsaturated esters (1-3), a fatty acid (4), a fatty ester (5), phytone (6) and a phloroglucinol (hyperfoliatin) (7) were isolated from the light petroleum extract of the endemic species Hypericum tomentosum L. (Clusiaceae). Compound 2, 8,10,13-trimethyltetradecanoic acid (2E)-3-methylhexadec-2-enyl ester, which we named tomentosate, is reported for the first time. The structures of the identified compounds were established on the basis of physical and spectroscopic analysis, and by comparison with literature data.

Synthesis of carbocycles from ω-substituted α,β-unsaturated esters via radical-induced cyclizations

1987 ◽  
Vol 65 (8) ◽  
pp. 1859-1866 ◽  
Author(s):  
Stephen Hanessian ◽  
Daljit S. Dhanoa ◽  
Pierre L. Beaulieu
Keyword(s):  
Ester Group ◽  
Carbon Chain ◽  
Radical Cyclization ◽  
Unsaturated Esters ◽  
Carbocyclic Compounds ◽  
Bicyclic Structure

The intramolecular radical cyclization of ω-bromo α,β-unsaturated esters for the synthesis of carbocyclic compounds is described. The effect of carbon chain substituents, the bulk of the ester group, and the olefin geometry were examined. The highest level of stereoselectivity (trans/cis: 9/1) was achieved with the Z ester via an exo cyclization. The sequential radical cyclization of a dihalodienoate to give a cis-fused bicyclic structure is also described.

ChemInform Abstract: Palladium-Catalyzed Reductive Ring Opening with Formic Acid of Aziridines Bearing an α,β-Unsaturated Ester Group.

ChemInform ◽  
2010 ◽  
Vol 29 (5) ◽  
pp. no-no
Author(s):  
H. OHNO ◽  
N. MIMURA ◽  
A. OTAKA ◽  
H. TAMAMURA ◽  
N. FUJII ◽  
...  
Keyword(s):  
Formic Acid ◽  
Ring Opening ◽  
Ester Group ◽  
Unsaturated Ester ◽  
Palladium Catalyzed
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