A Facile and Selective Method for Oxidation of Sufides and Thiols to Their Corresponding Sulfoxides and Disulfies with Alumina-Supported Potassium Permanganate Under Solvent-Free Conditions
This paper describes the facile and selective oxidation of sulfides 1 and thiols 3 to their corresponding sulfoxides 2 and disulfides 4 with potas
Synthesis and Characterization of Novel Optically Active Poly(amide-imide)s.
Abstract
4,4′-(Hexafluoroisopropylidene)-bis-(phthalic anhydride) (1) was reacted with L-leucine (2) in toluene solution at refluxing temperature in the presence of triethylamine and the resulting imide-acid (4) was obtained in quantitative yield.
An Efficient Method for Production and Storage of Unstable S-Nitrosothiols Under Mild and Heterogeneous Condition with Sodium Nitrite and Oxalic Acid Dihydrate
Abstract
Thiols can be readily converted to their corresponding nitrosothiols with a combination of oxalic acid and sodium nitrite in t-butanol at room temperature (26-30°C).
Asymmetric Polymerization Via Cycloaddition Reactions
Abstract
The reaction of N-phthaloyl-L-leucine acid chloride (1) with isoeugenol (2) was carried out in chloroform, and novel optically active isoeugenol ester derivative 3 as a chiral monomer was obtained in high yield.
BENZYLTRIPHENYLPHOSPHONIUM PEROXODISULFATE (PhCH2PPh3)2S2O8: A MILD AND INEXPENSIVE REAGENT FOR HIGHLY ENANTIOMERIC PURITY OF α-SULFINYL OXIMES AND α-SULFINYL HYDRAZONES TO THE CORRESPONDING β-KETO SULFOXIDES
ABSTRACT
Benzyltriphenylphosphoniumperoxodisulfate (PhCH2PPh3)2S2O, (I) is readily prepared as an white solid from benzyltriphenylphosphoniumchloride, performs conversion of α-sulfinyl oximes (2) and α-sulfinyl hydrazones (4) to the corresponding β-keto sulfoxides (3) in high yields and high enantiomeric purity.