88252-61-3Relevant academic research and scientific papers
REACTION OF POTASSIUM SUPEROXIDE WITH 3-NITRO-2-PHENYL-2H-1-BENZOPYRANS AND THEIR DIHYDRO DERIVATIVES
Rao, Takkellapati Sudhakar,Trivedi, Girish Kumar
, p. 2117 - 2124 (2007/10/02)
3-Nitro-2-phenyl-2H-1-benzopyrans on treatment with potassium superoxide in dimethyl sulphoxide are degraded mainly to the corresponding salicylic acids and benzoic acids. Formation of flavonols, as a minor product are also observed. The dihydro derivatives of 3-nitro-2-phenyl-2H-1-benzopyrans are converted to the corresponding flavonols by potassium superoxide in benzene containing 18-crown-6 ether.
A NOVEL PHOTOCHEMICAL METHOD FOR THE SYNTHESIS OF FLAVONOLS
Rao, Sudhakar T.,Singh, Anil Kumar,Trivedi, Girish Kumar
, p. 1377 - 1382 (2007/10/02)
Photolysis of the nitrochromenes followed by acidic hydrolysis of the photoproducts yields the corresponding flavonols in high yields.
