An intramolecular selenocyclizations of olefins mediated by a commercially available hypervalent iodine(Ⅲ) reagent,PhIO,was developed.This method provided access to a wide range of selenenylated heterocycles under am...An intramolecular selenocyclizations of olefins mediated by a commercially available hypervalent iodine(Ⅲ) reagent,PhIO,was developed.This method provided access to a wide range of selenenylated heterocycles under ambient conditions.The striking advantages of this protocol over all previous methods include mild reaction conditions,easy operation,good yields,high levels of functional group compatibility,large-scale application and suitability for the late-stage functionalization of complex molecules of biological importance.展开更多
A series of novel hybrid photoinitiators(YPhCOPhXPhI^+PhPF_6^-,Y = 4-NO_2,4-MeO or 3-Cl,X = O,OCH_2,or nothing),which contain multiple aromatic rings(PhCOPhXPh),were prepared by reaction of easily available aryl keton...A series of novel hybrid photoinitiators(YPhCOPhXPhI^+PhPF_6^-,Y = 4-NO_2,4-MeO or 3-Cl,X = O,OCH_2,or nothing),which contain multiple aromatic rings(PhCOPhXPh),were prepared by reaction of easily available aryl ketones (YPhCOPhXPh) with iodosobenzene diacetate[PhI^+OCOCH_3(CH_3CO_2)^-].The inset of an aromatic ring into p-benzoyldiphenyliodonium hexafluorophophate(PhCOPhI^+PhPF_6^-)(BDPIH,He-type photoinitiator) between diphenyliodonium and benzoyl is propitious both to the preparation and the photoinitiat...展开更多
基金supported by the Natural Science Foundation of Jiangsu Province (No.BK20170439)Science and Technology Plan Projects of Nantong (Nos.JC2019102 and JC2020072)。
文摘An intramolecular selenocyclizations of olefins mediated by a commercially available hypervalent iodine(Ⅲ) reagent,PhIO,was developed.This method provided access to a wide range of selenenylated heterocycles under ambient conditions.The striking advantages of this protocol over all previous methods include mild reaction conditions,easy operation,good yields,high levels of functional group compatibility,large-scale application and suitability for the late-stage functionalization of complex molecules of biological importance.
基金supported by the National Natural Science Foundation of China(No.20772102)Doctor Student Research Foundation of Chinese Education Ministry(No.20060530002)
文摘A series of novel hybrid photoinitiators(YPhCOPhXPhI^+PhPF_6^-,Y = 4-NO_2,4-MeO or 3-Cl,X = O,OCH_2,or nothing),which contain multiple aromatic rings(PhCOPhXPh),were prepared by reaction of easily available aryl ketones (YPhCOPhXPh) with iodosobenzene diacetate[PhI^+OCOCH_3(CH_3CO_2)^-].The inset of an aromatic ring into p-benzoyldiphenyliodonium hexafluorophophate(PhCOPhI^+PhPF_6^-)(BDPIH,He-type photoinitiator) between diphenyliodonium and benzoyl is propitious both to the preparation and the photoinitiat...
