Innovation ability is the ability to continuously provide new ideas,theories,methods,and inventions with economic,social,and ecological values in the fields of technology and various practical activities.The ideologic...Innovation ability is the ability to continuously provide new ideas,theories,methods,and inventions with economic,social,and ecological values in the fields of technology and various practical activities.The ideological and political education of vocational school students should be student-oriented and close to reality and life.It is necessary to improve the pertinence,effectiveness,attractiveness,and infectiousness of ideological and political education,and cultivate socialist builders and successors with all-round development of morality,intelligence,physique,and beauty.In this paper,we investigate and understand the practice of innovation ability education in colleges and universities at home and abroad,especially the current situation of professional practice teaching in Xinjiang Vocational Colleges.The construction of a professional practice base in vocational colleges is systematically studied.展开更多
An unprecedented deammoniative condensation reaction of primary allylic amines with nonallylic amines has been developed through C-N bond cleavage.In the presence of 5 mol%palladium diacetate,10 mol%1,4-bis(diphenylph...An unprecedented deammoniative condensation reaction of primary allylic amines with nonallylic amines has been developed through C-N bond cleavage.In the presence of 5 mol%palladium diacetate,10 mol%1,4-bis(diphenylphosphino)butane(dppb),and 5 mol%p-toluenesulfonic acid(TsOH),a range of α-unbranched primary allylic amines smoothly underwent deammoniative condensation with nonallylic amines in an α-selective fashion to give structurally diverse secondary and tertiary amines in good to excellent yields and E selectivity.Replacing dppb with racemic 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl(BINAP)permitted the deammoniative condensation of enantioenriched α-chiral primary allylic amines with nonallylic amines to proceed with complete retention of configuration.Electrospray ionization(ESI)mass spectrometric analysis of the reaction mixture permitted the identification of some π-allylpalladium intermediates,and plausible mechanisms have been proposed to account for the regioselectivity and stereospecificity of the deammoniative condensation reaction.展开更多
基金2023 Education Assistance to Xinjiang Special Project of Jiangsu Vocational and Technical Education Science Research Centre(SZ2023041)。
文摘Innovation ability is the ability to continuously provide new ideas,theories,methods,and inventions with economic,social,and ecological values in the fields of technology and various practical activities.The ideological and political education of vocational school students should be student-oriented and close to reality and life.It is necessary to improve the pertinence,effectiveness,attractiveness,and infectiousness of ideological and political education,and cultivate socialist builders and successors with all-round development of morality,intelligence,physique,and beauty.In this paper,we investigate and understand the practice of innovation ability education in colleges and universities at home and abroad,especially the current situation of professional practice teaching in Xinjiang Vocational Colleges.The construction of a professional practice base in vocational colleges is systematically studied.
基金We are grateful for the financial support from the National Natural Science Foundation of China(Nos.21232007,21202154 and 21172206)the National Key Basic Research Program of China(No.2014CB931800).
文摘An unprecedented deammoniative condensation reaction of primary allylic amines with nonallylic amines has been developed through C-N bond cleavage.In the presence of 5 mol%palladium diacetate,10 mol%1,4-bis(diphenylphosphino)butane(dppb),and 5 mol%p-toluenesulfonic acid(TsOH),a range of α-unbranched primary allylic amines smoothly underwent deammoniative condensation with nonallylic amines in an α-selective fashion to give structurally diverse secondary and tertiary amines in good to excellent yields and E selectivity.Replacing dppb with racemic 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl(BINAP)permitted the deammoniative condensation of enantioenriched α-chiral primary allylic amines with nonallylic amines to proceed with complete retention of configuration.Electrospray ionization(ESI)mass spectrometric analysis of the reaction mixture permitted the identification of some π-allylpalladium intermediates,and plausible mechanisms have been proposed to account for the regioselectivity and stereospecificity of the deammoniative condensation reaction.
