Abstract:
A variety of alcohols were converted to their corresponding carbonyl compounds by using 1-benzyl-4-aza-1-azoniabicyclo[2.2.2]octane dichromate as a useful reagent under microwave
irradiation.
A new facile and rapid polycondensation reaction of 4,4′-(hexafluoroisopropylidene)-N,N′-bis(phthaloyl-L-leucine) diacid chloride (1) with several aromatic diamines, including benzidine (2a), 4,4′-diaminodiphenyl methane (2b), 1,5-diaminoanthraquinone (2c), 4,4′-sulfonyldianiline (2d), 3,3′-diamin
Tetrachlorophthalic 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.
ABSTRACT
A combination of periodic or iodic acids and sodium nitrite in the presence of wet SiO2 was used as an effective oxidizing agent for the oxidation of urazoles and bis-urazoles to their corresponding triazolinediones under mild and heterogeneous conditions with good yields.
Abstract:
A variety of alcohols were converted to their corresponding carbonyl compounds by using 1-benzyl-4-aza-1-azoniabicyclo[2.2.2]octane dichromate as a useful reagent under microwave
irradiation
ABSTRACT
A combination of periodic or iodic acids and sodium nitrite in the presence of wet SiO2 was used as an effective oxidizing agent for the oxidation of urazoles and bis-urazoles to their corresponding triazolinediones under mild and heterogeneous conditions with good yields.
Tetrachlorophthalic 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.
A series of photoactive polyamides (PAs) containing acetoxynaphthalamide side chain with inherent viscosities of 0.27–0.56 dl g