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Stereoselective electrophilic reactions using azaallyllithium reagents generated from acyclic imidate esters
(1983)
The generation and synthetic utility of azaallyllithium reagents from acyclic imidate esters was described. The acyclic imidate esters 5-15, 18-22, 31-33, 34, 36 and 37 were prepared by various methods. Azaallyllithium ...
Synthesis and evaluation of the biological activity of analogues of leupeptin
(1983)
Leupeptin, N-acetyl or N-propionyl-L-leucyl-L-leucyl-DL-argininal, is a potent inhibitor of trypsin-like enzymes; however, it is not selective within this proteolytic class. In an effort to increase selectivity among ...
A total synthesis of racemic trichodiene
(1984)
A highly stereoselective, convergent synthesis of ( )-trichodiene was developed using a Lewis acid catalyzed Nazarov cyclization to form the adjacent quaternary centers with the correct stereochemistry. The dienone ...
The synthesis and characterization of thio sugar esters of diorganylarsinous acids
(1978)
The synthesis of thiosugars containing several diorganylarsino groups is described. The compounds prepared are: dihexadecyl-, di-n-octyl-, dicyclohexyl-, dibutyl-, dipropyl-, diethyl-, methyl-npropyl- and 2-hydroxyethylm ...
Stereoselective syntheses of alpha, beta-diamino acids
(1984)
A method for the threo-stereoselective synthesis of (alpha),(beta)-diamino acids has been developed. This method was applied to the synthesis of (5-chloro-2-piperidinyl)glycine (streptolutine) and analogs of streptolutine. ...
The synthesis and structural characterization of dinuclear and triniuclear vanadium complexes
(1983)
The reactions of VCl(,2)(.)2THF and VCl(,3)(.)3THF with ligands capable of functioning as three atom bridges between metal atoms were studied. Several new dimeric and trimeric vanadium complexes in oxidation states II to ...
Synthetic applications of photocyclizations reactions : N-allyliminium salt photocyclizations and intramolecular photoarylation of N-haloarylethyl-[beta]-enaminones
(1981)
The development and application of synthetic methods utilizing N-allyliminium salt photocyclization reactions for the construction of spiro-heterobicyclic ring systems and intramolecular photoarylation of N-haloarylethyl ...
Photochemical studies of a-chymotrypsin and bovine serum albumin containing triplet photosensitizers
(1976)
A new and unusual photochemical method for achieving asymmetric synthesis which uses modified proteins as triplet photosensitizers and prochiral photolabile molecules as substrates is proposed. The modified protein, phenacyl ...
The synthesis and characterization of binuclear complexes of platinum (III)
(1986)
A reliable, high-yield synthetic method for the preparation of binuclear, metal-metal bonded platinum(III) complexes has been developed. A wide variety of complexes have been prepared by the following reaction sequence: ...
Preparation and structural characterization of Re[subscript]2[superscript]n+ compounds containing sulfato, amidino, phosphine and methyl ligands
(1976)
Four new complexes containing the quadruply bonded Re₂ (superscript n+) unit have been synthesized and the structure of each has been determined by X-ray crystallographic methods. The first compound, Na₂Re₂(SO)₄)₄, was ...