Rh(III)-Catalyzed C–H Activation with Allenes To Synthesize Conjugated Olefins
摘要:
Rh-III-catalyzed C-H activation with allenes produces highly unsaturated conjugated olefins. The reaction is applicable to both olefin and arene C(sp(2))-H and is compatible with a variety of functional groups. The products can be further transformed into other important skeletons through Diels-Alder reaction and intramolecular transesterification.
Rh(III)-Catalyzed C–H Activation with Allenes To Synthesize Conjugated Olefins
摘要:
Rh-III-catalyzed C-H activation with allenes produces highly unsaturated conjugated olefins. The reaction is applicable to both olefin and arene C(sp(2))-H and is compatible with a variety of functional groups. The products can be further transformed into other important skeletons through Diels-Alder reaction and intramolecular transesterification.
Rhodium‐Catalyzed Vinylic C–H Functionalization of Enol Carbamates with Maleimides
作者:Satyasheel Sharma、Sang Hoon Han、Hyeim Jo、Sangil Han、Neeraj Kumar Mishra、Miji Choi、Taejoo Jeong、Jihye Park、In Su Kim
DOI:10.1002/ejoc.201600558
日期:2016.7
The rhodium(III)-catalyzed direct C–H functionalization of enol carbamates with a range of maleimides is described. With the assistance of the carbamoyl directing group, this reaction provides biologically relevant succinimide compounds by proceeding through a C–Rh addition and subsequent protonation pathway.
Using Rh(III)-Catalyzed C–H Activation as a Tool for the Selective Functionalization of Ketone-Containing Molecules
作者:Mélissa Boultadakis-Arapinis、Matthew N. Hopkinson、Frank Glorius
DOI:10.1021/ol500258q
日期:2014.3.21
Due to the strong potential of C H activation in many areas of organic chemistry, the use of a pre-existing carbonyl group for the installation of a directing group to enable selective and predictable alpha-alkenylation with activated olefins as coupling partners is described. This Heck-type reaction would then lead either to beta,gamma-unsaturated ketones or to variously substituted 1,4-butadienes depending on the conditions used for the cleavage of the directing group.