Rh(III)-catalyzed C−H alkylation of indolines with enones through conjugate addition and protonation pathway
作者:Hyunjung Oh、Jihye Park、Sang Hoon Han、Neeraj Kumar Mishra、Suk Hun Lee、Yongguk Oh、Mijin Jeon、Gyeong-Joo Seong、Ka Young Chung、In Su Kim
DOI:10.1016/j.tet.2017.06.052
日期:2017.8
The rhodium(III)-catalyzed C−H alkylations of indolines with enones and enals is described. This reaction can proceed through 1,4-conjugate addition and protonation process providing β-indolinic ketone compounds, which are known to be crucial scaffolds of biologically active compounds.
Rhodium-catalyzed mild and selective C–H allylation of indolines and indoles with 4-vinyl-1,3-dioxolan-2-one: facile access to indolic scaffolds with an allylic alcohol moiety
作者:Satyasheel Sharma、Youngmi Shin、Neeraj Kumar Mishra、Jihye Park、Sangil Han、Taejoo Jeong、Yongguk Oh、Youngil Lee、Miji Choi、In Su Kim
DOI:10.1016/j.tet.2015.02.052
日期:2015.4
The rhodium(III)-catalyzed selective C–H allylations of indolines and indoles with 4-vinyl-1,3-dioxolan-2-one at room temperature are described. These transformations provide the direct and efficient formation of indolic scaffolds containing an allylic alcohol group.
Conversion of O -succinimidyl carbamates to N -( O -carbamoyl)-succinmonoamides and ureas: effects of N -substituents and reaction conditions on the reaction pathway
作者:Natalya I. Vasilevich、David H. Coy
DOI:10.1016/s0040-4039(02)01451-x
日期:2002.9
Whereas N-monoalkyl-O-succinimidyl carbamates reacted with primary and secondary amines to produce Only ureas, N,N-dialkyl-O-succinimidyl carbamates reacted with primary and secondary amines to produce N-(O-carbamoyl)-succinmonoamides. N-Alkyl-N-aryl-O-succinimidyl carbamates under the same condition led to Mixture of both products. The effects of N-substituents and reaction conditions On O-succinimidyl carbamates conversion are discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.