The photochemical reactions of active methylene containing such as fluorene, diphenymethane(DPM), di(1 naphthyl)methane (DNM) and triphenymethane(TPM) with N bromosuccinimide (NBS) were investigated The results show t...The photochemical reactions of active methylene containing such as fluorene, diphenymethane(DPM), di(1 naphthyl)methane (DNM) and triphenymethane(TPM) with N bromosuccinimide (NBS) were investigated The results show that monobromo derivatives can be selectively obtained when the ratio of NBS to a substrate is 1 1∶1 and that the reactivities of the substrates toward photochemical reaction are DNM > Fluorene> DPM > TPM The reaction mechanisms were also展开更多
文摘The photochemical reactions of active methylene containing such as fluorene, diphenymethane(DPM), di(1 naphthyl)methane (DNM) and triphenymethane(TPM) with N bromosuccinimide (NBS) were investigated The results show that monobromo derivatives can be selectively obtained when the ratio of NBS to a substrate is 1 1∶1 and that the reactivities of the substrates toward photochemical reaction are DNM > Fluorene> DPM > TPM The reaction mechanisms were also
