Rotational preference in "cage" dissociation-recombinations: thermal automerization of optically active methyl threo-2,3-diphenylbutane-2-carboxylate

1986 ◽  
Vol 108 (23) ◽  
pp. 7442-7444 ◽  
Author(s):  
William von Eggers. Doering ◽  
Ludmila. Birladeanu
Keyword(s):  
Optically Active ◽  
Active Methyl

scholarly journals Synthesis of Optically Active Methyl 7β-Hydroxykaurenoate with Potent Neuroprotective Activity

2004 ◽  
Vol 52 (9) ◽  
pp. 1153-1154 ◽  
Author(s):  
Masahiro Toyota ◽  
Kiminori Matsuura ◽  
Masahiro Yokota ◽  
Manami Kimura ◽  
Masahiro Yonaga ◽  
...  
Keyword(s):  
Optically Active ◽  
Neuroprotective Activity ◽  
Active Methyl

Structure-activity relations of ethylenimines. VIII. Optically active methyl-substituted ethylenimines

1969 ◽  
Vol 12 (2) ◽  
pp. 332-333
Author(s):  
Albert T. Bottini ◽  
Vasu Dev ◽  
Barry F. Dowden ◽  
Allen J. Gandolfi
Keyword(s):  
Optically Active ◽  
Structure Activity ◽  
Active Methyl ◽  
Structure Activity Relations

Stereochemistry of the silylcarbinol to silyl ether rearrangement

1967 ◽  
Vol 45 (11) ◽  
pp. 1231-1246 ◽  
Author(s):  
A. G. Brook ◽  
C. M. Warner ◽  
W. W. Limburg
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Optically Active ◽  
Silyl Ether ◽  
Silicon Compounds ◽  
Silyl Ethers ◽  
Active Methyl ◽  
Asymmetric Carbon ◽  
Nuclear Magnetic

It is shown that optically active methyl-α-naphthylphenylsilyldiphenylcarbinol and optically active methyl- α naphthylphenylsilylmethylphenylcarbinol undergo highly stereo-selective rearrangements to the isomeric silyl ethers. Both rearrangements involve retention of configuration at the asymmetric silicon center. The silylmethylphenylcarbinol is also shown to undergo retention of configuration with complete stereoselectivity at the asymmetric carbon center, regardless of the catalyst or solvent employed. The use of nuclear magnetic resonance for determining the proportions of the diastereomers is described, as are the syntheses of a number of asymmetric silicon compounds.

Synthesis of Optically Active Methyl 7?-Hydroxykaurenoate with Potent Neuroprotective Activity.

ChemInform ◽  
2005 ◽  
Vol 36 (7) ◽  
Author(s):  
Masahiro Toyota ◽  
Kiminori Matsuura ◽  
Masahiro Yokota ◽  
Manami Kimura ◽  
Masahiro Yonaga ◽  
...  
Keyword(s):  
Optically Active ◽  
Neuroprotective Activity ◽  
Active Methyl
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