The effect of remote substitution on formation of preferential geometrical isomer of cobalt(III)–tetrazolato complexes formed via [2+3] cycloaddition

2013 ◽  
Vol 34 ◽  
pp. 62-67 ◽  
Author(s):  
Manideepa Saha ◽  
Rajendar Nasani ◽  
Shaikh M. Mobin ◽  
Biswarup Pathak ◽  
Suman Mukhopadhyay
Keyword(s):  
Geometrical Isomer

Insect Sex Pheromones: Minor Amount of Opposite Geometrical Isomer Critical to Attraction

Science ◽  
1973 ◽  
Vol 181 (4100) ◽  
pp. 661-663 ◽  
Author(s):  
J. A. Klun ◽  
O. L. Chapman ◽  
K. C. Mattes ◽  
P. W. Wojtkowski ◽  
M. Beroza ◽  
...  
Keyword(s):  
Sex Pheromones ◽  
Geometrical Isomer ◽  
Minor Amount ◽  
Insect Sex Pheromones ◽  
Insect Sex

scholarly journals A Relay Strategy Actuates Pre-Existing Trisubstituted Olefins in Monoterpenoids to Form New Trisubstituted Olefins by Cross Metathesis

2019 ◽  
Author(s):  
Karim Bahou ◽  
D. Christopher Braddock ◽  
Adam G. Meyer ◽  
G. Paul Savage ◽  
Zhensheng Shi ◽  
...  
Keyword(s):  
Geometrical Isomer ◽  
Successful Implementation ◽  
Enantiomerically Pure ◽  
Cross Metathesis ◽  
Trisubstituted Olefins ◽  
The Cross ◽  
Trisubstituted Alkenes

<b><u>Abstract:</u></b> A retrosynthetic disconnection-reconnection analysis of epoxypolyenes – substrates that can undergo cyclization to podocarpane-type tricycles – reveals relay-actuated Δ<sup>6,7</sup>-functionalized monoterpenoid alcohols for ruthenium benzylidene catalyzed olefin cross metathesis with homoprenyl benzenes. Successful implementation of this approach provided several epoxypolyenes as expected (<i>E</i>:<i>Z</i>, ca. 2-3:1). The method is further generalized for the cross metathesis of pre-existing trisubstituted olefins in other relay-actuated Δ<sup>6,7</sup>-functionalized monoterpenoid alcohols with various other trisubstituted alkenes to form new trisubstituted olefins. Epoxypolyene cyclization of an enantiomerically pure, but geometrically impure, epoxypolyene substrate provides an enantiomerically pure, trans-fused, podocarpane-type tricycle (from the <i>E</i>-geometrical isomer).<br>

Some nickel(II) and cobalt(III) complexes of two isomeric Tetraethyl-dimethyl-1,4,8,11-tetraazacyclotetradecadienes

1974 ◽  
Vol 27 (1) ◽  
pp. 71 ◽  
Author(s):  
NF Curtis
Keyword(s):  
Chemical Properties ◽  
Geometrical Isomer ◽  
Derivatives Of

Preparations of N-rac- and N-meso-[Ni(l)][C1O4]2, N-meso-[Ni(l)(NCS)]2, N-rac-[{Ni(l)}2C2O4]-[ClO4]2, N-rac-[Co(l)acac][ClO4]2 and trans-N-rac-[Co(l)X2] ClO4, X = Cl-, Br-, OAc-, NO2- are reported [where (1)= C-meso-(5,7,12,14-tetraethyl-7,14-dimethyl-l,4,8,ll-tetraazacyclotetradeca-4,ll-diene)]. The p.m.r. spectra of N-rac- and N-meso-[Ni(l)]2+, some cobalt(111) derivatives of (1), and of [Ni (2)]2+, where (2) = C-meso-(5,7,12,14-tetraethyl-7,12-dimethyl-l,4,8,1l-tetraazacyclotetradeca-4,14-diene), a geometrical isomer of (1), are described. The configurational assignments are deduced from the chemical properties and p.m.r, spectra.

scholarly journals Effect of Emeriamine, an Inhibitor of Fatty Acid Oxidation, on Metabolic Fate of a Geometrical Isomer of Linoleic Acid in Perfused Rat Liver.

1998 ◽  
Vol 44 (4) ◽  
pp. 525-535 ◽  
Author(s):  
Nobuhiro FUKUDA ◽  
Masanori FUKUI ◽  
Yasuko KAI ◽  
Anura P. JAYASOORIYA ◽  
Masanobu SAKONO ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Linoleic Acid ◽  
Fatty Acid Oxidation ◽  
Rat Liver ◽  
Geometrical Isomer ◽  
Acid Oxidation ◽  
Perfused Rat Liver ◽  
Metabolic Fate
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