The Absolute Configuration of Cuauhtemone and Related Compounds

ChemInform ◽  
2003 ◽  
Vol 34 (24) ◽  
Author(s):  
J. Martin Torres-Valencia ◽  
Dora L. Quintero-Mogica ◽  
Guadalupe I. Leon ◽  
Oscar R. Suarez-Castillo ◽  
J. Roberto Villagomez-Ibarra ◽  
...  
Keyword(s):  
Absolute Configuration ◽  
The Absolute ◽  
Related Compounds

The absolute configuration of (+)-3,4-Bis(p-hydroxyphenyl)hexane (hexoestrol) and related compounds

1974 ◽  
Vol 27 (8) ◽  
pp. 1753 ◽  
Author(s):  
DJ Collins ◽  
JJ Hobbs
Keyword(s):  
Absolute Configuration ◽  
Valeric Acid ◽  
The Absolute ◽  
Related Compounds ◽  
Absolute Stereochemistry

(+)-(2S,3R)-2,3-Bis(p-methoxyphenyl)valeric acid, previously converted into (-)-(2R,3R)-2,3-bis(p-methoxyphenyl)pentane, has now been converted into (+)-(3R,4R)-3,4-bis(p-methoxyphenyl)hexane via (+)-(3S,4R)-3,4-bis(p-methoxyphenyl)hexan-2-one and (-)-(4s)-3,4-bis(p-methoxypheny1)hex-2-ene. This provides unequivocal correlation of the absolute stereochemistry of a series of homologous diarylalkanes, and a corresponding series of diarylalkenes.

ChemInform Abstract: Chiral Lactols. Part 13. Determination of the Absolute Configuration of Aromatic Cyanohydrins and Structurally Related Compounds

ChemInform ◽  
2010 ◽  
Vol 26 (42) ◽  
pp. no-no
Author(s):  
C. R. NOE ◽  
M. KNOLLMUELLER ◽  
P. GAERTNER ◽  
E. KATIKARIDES ◽  
L. GAISCHIN ◽  
...  
Keyword(s):  
Absolute Configuration ◽  
The Absolute ◽  
Related Compounds

Chiral lactols, XIII. On the determination of the absolute configuration of aromatic cyanohydrins and structurally related compounds

1995 ◽  
Vol 1995 (7) ◽  
pp. 1353-1360 ◽  
Author(s):  
Christian R. Noe ◽  
Max Knollmüller ◽  
Peter Gärtner ◽  
Elias Katikarides ◽  
Larissa Gaischin ◽  
...  
Keyword(s):  
Absolute Configuration ◽  
The Absolute ◽  
Related Compounds

Alkaloids of Lycopodiumlucidulum Michx. Structure and properties of alkaloid L.23

1969 ◽  
Vol 47 (3) ◽  
pp. 449-455 ◽  
Author(s):  
W. A. Ayer ◽  
B. Altenkirk ◽  
R. H. Burnell ◽  
M. Moinas
Keyword(s):  
Absolute Configuration ◽  
Cotton Effect ◽  
Ultraviolet Spectrum ◽  
Optical Rotatory Dispersion ◽  
Rotatory Dispersion ◽  
Optical Rotatory ◽  
Structure And Properties ◽  
The Absolute ◽  
Related Compounds ◽  
Circular Dichroic

The minor alkaloids present among the strong bases of Lycopodiumlucidulum have been reinvestigated. Manske and Marion's alkaloid L.23 has been shown to be epimeric with lycodoline at C-12 and the nitrogen. A correlation between the two alkaloids has been achieved. The presence of a σ-coupled p interaction in the ultraviolet spectrum of lycopodine, lycodoline, and related compounds is described. A Cotton effect due to this chromophore has been detected by means of circular dichroism. The optical rotatory dispersion and circular dichroic properties of lycopodine, 12-epilycopodine, lycodoline, and alkaloid L.23 are discussed in terms of the absolute configuration assigned to these alkaloids.

Structures and Synthesis of 4a-Homo-7,19-dinorsteroids, X-Ray Crystallography and NMR Spectroscopy

1999 ◽  
Vol 64 (12) ◽  
pp. 2019-2034 ◽  
Author(s):  
Alexander Kasal ◽  
Miloš Buděšínský ◽  
Jan Pelnař ◽  
Michael A. Bruck ◽  
Michael F. Brown
Keyword(s):  
Nmr Spectroscopy ◽  
Absolute Configuration ◽  
Starting Material ◽  
Nmr Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
X Ray Crystallography ◽  
Leaving Group ◽  
The Absolute ◽  
Related Compounds

X-Ray diffraction revealed the absolute configuration of 4aβ-methyl-4a-homo-7,19-dinor- 5α,10α-androstane-3,17-dione. Detailed NMR analysis suggested that the 5α configuration existed in the starting material, 3β-acetoxy-4a-methylidene-4a-homo-7,19-dinor- 5α-androst-9-en-17-one, and related compounds. Thus 5-methyl-5β-estr-9-ene derivatives with a leaving group in position 6β were found to react with nucleophiles to form rearranged 4a-homo-7,19-dinorandrostane derivatives with a 5α configuration.

The absolute configuration of prunioside A from Spiraea prunifolia and biological activities of related compounds

2003 ◽  
Vol 64 (6) ◽  
pp. 1113-1118 ◽  
Author(s):  
Hyuncheol Oh ◽  
Hyungsoo Shin ◽  
Gi-Su Oh ◽  
Hyun-Ock Pae ◽  
Kyu-Yun Chai ◽  
...  
Keyword(s):  
Absolute Configuration ◽  
Biological Activities ◽  
The Absolute ◽  
Related Compounds

TERPENOIDS: XIII. THE STEREOCHEMISTRY OF CHAPARRIN, CHAPARROL, AND RELATED COMPOUNDS

1965 ◽  
Vol 43 (11) ◽  
pp. 3008-3017 ◽  
Author(s):  
T. R. Hollands ◽  
P. De Mayo ◽  
M. Nisbet ◽  
P. Crabbé
Keyword(s):  
Absolute Configuration ◽  
Optically Active ◽  
The Absolute ◽  
Related Compounds

Evidence is presented which leads to the absolute stereostructures XX, X, XI, and XII for chaparrin, chaparrol, isochaparrol, and neochaparrol respectively. The absolute configuration is arrived at by conversion to an optically active biphenyl (dihydrophenanthrene).

Determination of the Absolute Configuration of a Monoglyceride Antibolting Compound and Isolation of Related Compounds from Radish Leaves (Raphanus sativus)

2017 ◽  
Vol 80 (4) ◽  
pp. 872-878 ◽  
Author(s):  
Tsuyoshi Ogihara ◽  
Naruki Amano ◽  
Yuki Mitsui ◽  
Kaien Fujino ◽  
Hiroyuki Ohta ◽  
...  
Keyword(s):  
Absolute Configuration ◽  
Raphanus Sativus ◽  
The Absolute ◽  
Related Compounds
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