Global ETD Search

121	Alkylation of planar chiral cationic pi-allylmolybdenum complexes : the total synthesis of cryptophycin 4 Christopher, John Andrew January 2000 (has links) No description available. 547
122	The modification of supported palladium and nickel catalysts for asymmetric hydrogenation Young, Nicola C. January 1995 (has links) No description available. 547
123	Aldohaloketenes and the Stereochemistry of Aldohaloketene Cycloadditions Hoff, Edwin Frank 05 1900 (has links) The objective of this research problem was to synthesize aldohaloketenes and investigate the chemistry of this new class of ketenes. ketenes aldohaloketenes chemistry Ketenes. Stereochemistry.
124	Stereochemical aspects of the intramolecular Diels-Alder reaction Gillis, Herbert Russell January 1982 (has links) Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1982. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE / Includes bibliographical references. / by Herbert Russell Gillis, Jr. / Ph.D. Chemistry. Stereochemistry Diels-Alder reaction
125	Experimental studies in the isomerism and structural variations in molybdenum and rhenium halo-compounds Anderson, Ian Robert. January 1968 (has links) (PDF) Includes bibliography. Rhenium compounds Stereochemistry Molybdenum compounds
126	Total synthesis of (+)-bourgeanic acid and conformational analysis of its dilactone Johnson, Alan T. (Alan Thomas), 1957- 15 November 1990 (has links) Graduation date: 1991 Organic compounds -- Synthesis Lichens Stereochemistry
127	Theoretical studies of organometallic reactions in water and the mechanism and stereochemistry of hydrosilylation and hydroacylation reactions / Chung, Lung Wa. January 2003 (has links) Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2003. / Includes bibliographical references. Also available in electronic version. Access restricted to campus users.
128	A study of the stereoelectronic factors influencing nucleophilic attack at phosphorus Wickersham, Thomas Winder 08 1900 (has links) No description available. Phosphorus Stereochemistry Chemistry, Physical and theoretical
129	Reactions of sodium metal and alkali amides with 2,2,2-triphenylethyltrimethylammonium iodide and 2,2-dimethylpropyltrimethylammonium iodide Rogers, Lynn Calloway 12 1900 (has links) No description available. Chemistry, Organic Stereochemistry Iodides Amides
130	RCHDCHDX compounds as stereochemical probes : INDO and UMINDO investigations of a test to distinguish erythro and threo diastereomers Bloss, Richard E. January 1979 (has links) This research has investigated the validity of a recently proposed test for distinguishing erythro and threo diastereomers of RCHDCHDX compounds on the basis of temperature dependent nmr spectra. INDO and UMINDO semiempirical molecular orbital calculations were used to calculate all nmr vicinal proton-proton coupling constants of a series of CH3CH2CH2X compounds (X = BH2, CH3, NH2, OH, F, PH2, SH, Cl). These data were used to predict the relative temperature dependence of the time-averaged vicinal proton-proton coupling constants of the corresponding CH3CHDCHDX` compounds.Standard bond lengths and angles were used for the input of trial geometries. Coupling constant data were obtained for molecules with no geometry optimization, optimization of the CH3CCX dihedral angle and total geometry optimization. All results suggest that the proposed test for distinguishing erythro and threo diastereomers of RCHDCHDX compounds is valid. Isomerism. Stereochemistry. Nuclear magnetic resonance.

Search results