A new family of dibenzoullazine derivatives was synthesized through 1,3-dipolar cycloaddition of polycyclic aromatic azomethine ylides with alkynylbenziodoxoles followed by oxidation.The benziodoxole moiety in the res...A new family of dibenzoullazine derivatives was synthesized through 1,3-dipolar cycloaddition of polycyclic aromatic azomethine ylides with alkynylbenziodoxoles followed by oxidation.The benziodoxole moiety in the resulting products was used as a versatile linchpin for the synthesis of structurally diverse functional dibenzoullazines that are difficult to access by other synthetic methods.展开更多
Main observation and conclusion An anodic oxidation enabled synthesis of hypervalent iodinel(Ⅲ)reagents from aryl iodides is demonstrated.Under mild electrochem-ical conditions,a range of arylidine(Ⅲ)reagents includ...Main observation and conclusion An anodic oxidation enabled synthesis of hypervalent iodinel(Ⅲ)reagents from aryl iodides is demonstrated.Under mild electrochem-ical conditions,a range of arylidine(Ⅲ)reagents including iodosylarenes,(difunctionaliodo)arenes,benziodoxoles and diaryliodoni-um salts can be efficiently synthesized and derivatized in good to excellent yields with high selectivity.As only electrons serve as the oxidation reagents,this method offers a more straightforward and sustainable manner avoiding the use of expensive or hazardous chemical oxidants.展开更多
基金supported by Nanyang Technological University and the Agency for Science,Technology and Research(A*STAR)AME IRG grant(A2083c0056(SI)).
文摘A new family of dibenzoullazine derivatives was synthesized through 1,3-dipolar cycloaddition of polycyclic aromatic azomethine ylides with alkynylbenziodoxoles followed by oxidation.The benziodoxole moiety in the resulting products was used as a versatile linchpin for the synthesis of structurally diverse functional dibenzoullazines that are difficult to access by other synthetic methods.
基金the Thousand Tal-ents Program for Young Scholars,the Shenzhen Science and Technology Innovation Committee(No.JCYJ20190809142809370)the Guangdong Provincial Key Laboratory of Catalysis(No.2020B121201002).
文摘Main observation and conclusion An anodic oxidation enabled synthesis of hypervalent iodinel(Ⅲ)reagents from aryl iodides is demonstrated.Under mild electrochem-ical conditions,a range of arylidine(Ⅲ)reagents including iodosylarenes,(difunctionaliodo)arenes,benziodoxoles and diaryliodoni-um salts can be efficiently synthesized and derivatized in good to excellent yields with high selectivity.As only electrons serve as the oxidation reagents,this method offers a more straightforward and sustainable manner avoiding the use of expensive or hazardous chemical oxidants.
