The pyrethrins and related compounds. XIX Geometrical and optical isomers of 2,2-dimethyl-3-(2,2-dichlorovinyl)-cyclopropanecarboxylic acid and insecticidal esters with 5-benzyi-3-furylmethyi and 3-phenoxybenzyl alcohols

1974 ◽  
Vol 5 (6) ◽  
pp. 791-799 ◽  
Author(s):  
Paul E. Burt ◽  
Michael Elliott ◽  
Andrew W. Earnham ◽  
Norman F. Janes ◽  
Paul H. Needham ◽  
...  
Keyword(s):  
Optical Isomers ◽  
Cyclopropanecarboxylic Acid ◽  
Related Compounds

Optical isomers of 2-(2-ethoxyphenoxymethyl)tetrahydro-1,4-oxazine (viloxazine) and related compounds

1976 ◽  
Vol 19 (8) ◽  
pp. 1074-1076 ◽  
Author(s):  
Ralph Howe ◽  
Thomas Leigh ◽  
Balbir S. Rao ◽  
Alexander H. Todd
Keyword(s):  
Optical Isomers ◽  
Related Compounds

Synthesis of Vinca Alkaloids and Related Compounds XIV. A New Route to Cyclopropanecarboxylic Acid Derivatives

Heterocycles ◽  
1981 ◽  
Vol 15 (2) ◽  
pp. 1109 ◽  
Author(s):  
György Kalaus ◽  
Lajos Radics ◽  
Mária Kajtár-Peredy ◽  
Lajos Szabó ◽  
Csaba Szántay ◽  
...  
Keyword(s):  
Vinca Alkaloids ◽  
Cyclopropanecarboxylic Acid ◽  
Related Compounds

Refutation of alleged differences in the energy contents of optical isomers

1969 ◽  
Vol 47 (2) ◽  
pp. 79-83 ◽  
Author(s):  
Erich Baer ◽  
Hans-Helmut Flehmig
Keyword(s):  
Hydrogen Chloride ◽  
Gaseous Hydrogen ◽  
Optical Isomers ◽  
Heats Of Combustion ◽  
Experimental Values ◽  
Related Compounds

The heats of combustion of the optical isomers of α-monostearin and of glyceraldehyde reported by D. Buchnea to differ by 62 and 64 kcal/g-mole, respectively, were redetermined. Our experimental values for these, and for the optical isomers of several related compounds, are in accord with the generally accepted view that the heats of combustion of optical isomers are identical. They refute not only Buchnea's concept of different energy contents for optical isomers, but also the claim that they are responsible for the different rates of reaction observed by him for L-, D-, and DL-α-monostearin in ethereal suspensions containing gaseous hydrogen chloride.

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