Add to ORKG6β-Acetoxy-3β-benzyloxy-5α-androstan-5-ol-17-one (51), prepared from androstenolone, underwent Westphalen rearrangement to give the 5β-methyl-Δ9(10)-compound. Lead tetraacetate functionalisation of the 5β-methyl group in the 3β-hydroxyl derivative (53) gave 6β-acetoxy-3β,5-oxaethano-19-nor-5β-androst-9(10)-ene-17-one. Westphalen rearrangement of 6β-cyano-3β-methoxy-5α-cholestan-5-ol (56) cave the 6β-cyano-5β-methyl-derivative (57). Hofmann–Löffler cyclisation of the 6β-N-chloro-N-ethylamino-methyl derivative (62), prepared from this cyano-compound (57), cave none of the anticipated cyclic product (63), but, instead, the products were deduced as being mainly dimeric species (68 and/or 69), in which the 5β-methyl group had probably been funct...
Benzyl chloride is a moderately reactive halide. Substitution of the Cl⁻ by other nucleophiles, e.g....
by Siu-leung Ng.Thesis (M.Phil.)--Chinese University of Hong Kong, 1994.Includes bibliographical ref...
Thesis (Ph.D.)--Boston UniversityIn this study, propallorphan (a-3-hydroxy-N-propargylmorphina.n, Ro...
Part I: An approach to the total synthesis of the triterpene shionone is described, which proceeds t...
Thesis (Ph.D.)--Boston UniversityThree skipped unsaturated fatty acids, 8,11-octadecadienoic acid, 1...
In order to generate a chiral metallocene ligand similar to Kaminsky-Sinn catalysts, a multistep syn...
The preparation of a selection of novel opioid alkaloids based on alteration at the 1, 3 and 6 posit...
Studies of the ultraviolet and proton magnetic resonance spectra of solutions of 2,4,6-tribromo-, tr...
The work presented in this thesis describes several new and novel radical macrocyclisation-transannu...
The chemistry of amino sugar compounds has been studied in the last years in connection with the stu...
Abstract During the course of the studies outlined in this thesis, a new approach for the synthes...
The initial program of study for consideration was the extension of cyclooctatetraene complexation t...
The reaction of four 3β-hydroxy-derivatives of Westphalen's diol with lead tetraacetate is described...
The structure of sugar oximes has been examined by nuclear magnetic resonance spectroscopy (NMR). Th...
The first part describes the total synthesis and structural revision of (±)-tricholomalides A and B....
Benzyl chloride is a moderately reactive halide. Substitution of the Cl⁻ by other nucleophiles, e.g....
by Siu-leung Ng.Thesis (M.Phil.)--Chinese University of Hong Kong, 1994.Includes bibliographical ref...
Thesis (Ph.D.)--Boston UniversityIn this study, propallorphan (a-3-hydroxy-N-propargylmorphina.n, Ro...
Part I: An approach to the total synthesis of the triterpene shionone is described, which proceeds t...
Thesis (Ph.D.)--Boston UniversityThree skipped unsaturated fatty acids, 8,11-octadecadienoic acid, 1...
In order to generate a chiral metallocene ligand similar to Kaminsky-Sinn catalysts, a multistep syn...
The preparation of a selection of novel opioid alkaloids based on alteration at the 1, 3 and 6 posit...
Studies of the ultraviolet and proton magnetic resonance spectra of solutions of 2,4,6-tribromo-, tr...
The work presented in this thesis describes several new and novel radical macrocyclisation-transannu...
The chemistry of amino sugar compounds has been studied in the last years in connection with the stu...
Abstract During the course of the studies outlined in this thesis, a new approach for the synthes...
The initial program of study for consideration was the extension of cyclooctatetraene complexation t...
The reaction of four 3β-hydroxy-derivatives of Westphalen's diol with lead tetraacetate is described...
The structure of sugar oximes has been examined by nuclear magnetic resonance spectroscopy (NMR). Th...
The first part describes the total synthesis and structural revision of (±)-tricholomalides A and B....
Benzyl chloride is a moderately reactive halide. Substitution of the Cl⁻ by other nucleophiles, e.g....
by Siu-leung Ng.Thesis (M.Phil.)--Chinese University of Hong Kong, 1994.Includes bibliographical ref...
Thesis (Ph.D.)--Boston UniversityIn this study, propallorphan (a-3-hydroxy-N-propargylmorphina.n, Ro...