The stereochemistry of organometallic compounds. Part XII. The acid strengths of some tricarbonyl(alkylbenzoic acid)chromium compounds, their nuclear magnetic resonance spectra, and the spectra of some related compounds

1972 ◽  
pp. 103 ◽  
Author(s):  
M. Ashraf ◽  
W. R. Jackson
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Organometallic Compounds ◽  
Nuclear Magnetic Resonance Spectra ◽  
Chromium Compounds ◽  
Related Compounds ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

LYCOPODIUM ALKALOIDS: IV. THE CONSTITUTION AND STEREOCHEMISTRY OF LYCOCLAVINE, AN ALKALOID OF LYCOPODIUM CLAVATUM VAR. MEGASTACHYON

1962 ◽  
Vol 40 (11) ◽  
pp. 2088-2100 ◽  
Author(s):  
W. A. Ayer ◽  
D. A. Law
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Lycopodium Clavatum ◽  
Nuclear Magnetic Resonance Spectra ◽  
Lycopodium Alkaloids ◽  
Related Compounds ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

The alkaloids of Lycopodium clavatum var. megastachyon have been examined and two hitherto unreported alkaloids, lycoclavine and acetyllycoclavine, were isolated and their structures determined. The nuclear magnetic resonance spectra of these and related compounds are discussed in terms of the conformation of ring B in these alkaloids.

Dibenzo[a,d]cycloheptene and related compounds. II. The synthesis of some 11-substituted dibenzo[b,e]azepin-6-one, 5-substituted dibenzo[a,d]cycloheptene, and 12-substituted dibenzo[a,d]cyclooctene derivatives

1969 ◽  
Vol 47 (23) ◽  
pp. 4327-4333 ◽  
Author(s):  
K. Ackermann ◽  
J. Chapuis ◽  
D. E. Horning ◽  
G. Lacasse ◽  
J. M. Muchowski
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Improved Method ◽  
Modified Technique ◽  
Nuclear Magnetic Resonance Spectra ◽  
Related Compounds ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

The synthesis of several 11-substituted-5,6-dihydro-11H-dibenzo[b,e]azepin-6-ones, and an improved method of preparing 5-cyano-10,11-dihydro-5H-dibenzo[a,d]cycloheptene and 12-cyano-5,6,7,12-tetrahydrodibenzo[a,d]cyclooctene are described.A description of the synthesis of epoxides from diaryl ketones and dimethylsulfonium methylide by a modified technique is given.The nuclear magnetic resonance spectra of several of the 11-substituted dibenzo[b,e]azepin-6-ones are interpreted on the basis of a slow interconversion between diastereomeric boat conformers in which the C-11 substituent is quasi axial or quasi equatorial.

Carbonyl-bridged and related compounds. Structural assignments by nuclear magnetic resonance spectroscopy

1967 ◽  
Vol 45 (11) ◽  
pp. 1201-1207 ◽  
Author(s):  
C. F. H. Allen
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Magnetic Resonance Spectroscopy ◽  
Nuclear Magnetic Resonance Spectroscopy ◽  
Spectral Data ◽  
Resonance Spectroscopy ◽  
Nuclear Magnetic Resonance Spectra ◽  
Related Compounds ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

The spectral data, predominantly nuclear magnetic resonance spectra, of a number of carbonyl-bridged and related compounds have been examined. In most instances they confirm the structures arrived at by classical procedures, but in some instances revisions have been made.

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