Search
Now showing items 1-6 of 6
Vibrational spectroscopy and conformational dynamics of small ring molecules
(1982)
Low-frequency infrared and Raman spectra have been recorded and the one-dimensional asymmetric ring-puckering potential energy functions have been determined for 3-phospholene (CH(,2)CH=CHCH(,2)PH),(' )3-phospholene-1-d(,1), ...
Regiochemical and stereochemical studies of cationic pi-cyclizations
(1982)
Cationic (pi)-cyclization of allenyl alcohols 10a,b and allenyl ketones 11a,b provided evidence that the mode of ring closure of (gamma)-allenyl cationic systems is strongly dependent on the substitution pattern of the ...
Multi-dimensional analyses of large amplitude vibrations
(1982)
Computational methods were developed for correctly calculating the reduced masses for the ring-puckering and ring-twisting vibrations and for calculating the kinetic energy expansions for ring-puckering vibrations. Computer ...
A mechanistic study of heteroatom di-pi-methane systems containing silicon and nitrogen
(1976)
A series of substituted divinylsilanes: dimethyl-distyryl-(11). Triphenyl-stryrl-(12), diphenyl-distyryl(13), have been prepared for photochemical study. The results of low conversion photolyses of the di-methyl-di-styrylsilane ...
Synthetic and mechanistic investigations of organometallic reactions : oxidative cyclization of diester dienolates and mechanistic studies of dithiane reactions in the presence of hexamethylphosphoramide
(1983)
The oxidative cyclization of diester dienolates was investigated as a new synthetic method for cyclizing diesters. The proposed cyclization would use a transition metal salt to first complex with the terminal enolates to ...
The use of L-serine in the construction of carboalkoxy-substituted delta²-oxazoline, oxazole, delta²-thiazoline, and thiazole heterocyclic ring systems
(1983)
An (alpha)-amino acid was used in the preparation of non-peptide materials. The use of the (beta)-hydroxy-(alpha)-amino acid serine (14) was demonstrated to be effective in the construction of 2-substituted-4-carboxy-(DE ...