<正> An effective method of synthesizing polyaromatic hydrocarbons with high selectivity was developed through our research work on the photocoupling reactions between several haloaromatic hydrocarbons and aroma...<正> An effective method of synthesizing polyaromatic hydrocarbons with high selectivity was developed through our research work on the photocoupling reactions between several haloaromatic hydrocarbons and aromatic compounds. The structures of polyaromatic hydrocarbons synthesized were determined by IR, UV, ~1H NMR, MS and elemental analysis, and the crystal structure of 3-(1-naphthyl)-coumarin was established by an crystallographic analysis. Further study of the regioselectivity, orientational effect of substituents, solvent effect, sensitizing and quenching effect supported the proposed mechanism of this type of reaction involving election transfer process under excited triplet state.展开更多
Quinolinone and its derivatives have been known as growth hormones, antibiotics, fragrance, fluorescent materials, etc. Although various photochemical behavior including photodimerization, photocycloaddition and photo...Quinolinone and its derivatives have been known as growth hormones, antibiotics, fragrance, fluorescent materials, etc. Although various photochemical behavior including photodimerization, photocycloaddition and photoprenylation has been reported, little展开更多
基金Project supported by the National Natural Science Foundation of China.
文摘<正> An effective method of synthesizing polyaromatic hydrocarbons with high selectivity was developed through our research work on the photocoupling reactions between several haloaromatic hydrocarbons and aromatic compounds. The structures of polyaromatic hydrocarbons synthesized were determined by IR, UV, ~1H NMR, MS and elemental analysis, and the crystal structure of 3-(1-naphthyl)-coumarin was established by an crystallographic analysis. Further study of the regioselectivity, orientational effect of substituents, solvent effect, sensitizing and quenching effect supported the proposed mechanism of this type of reaction involving election transfer process under excited triplet state.
文摘Quinolinone and its derivatives have been known as growth hormones, antibiotics, fragrance, fluorescent materials, etc. Although various photochemical behavior including photodimerization, photocycloaddition and photoprenylation has been reported, little