Diarylmethylenated and cholestene-hybrid analogues of the GFP chromophore showed viscosity-dependent and cholesterol-responsive fluorescent properties.
Cp*Co(III)-Catalyzed γ-Selective C–H Allylation/Hydroamination Cascade for the Synthesis of Dihydroisoquinolines
作者:Suh Young Choi、Hyeon Dae Kim、Jong-Un Park、Sun-a Park、Ju Hyun Kim
DOI:10.1021/acs.orglett.9b03977
日期:2019.12.20
A Cp*Co(III)-catalyzed γ-selective C-H allylation/hydroamination cascade toward the synthesis of 3,4-dihydroisoquinolines (DHIQs) has been successfully developed, starting from NH ketimines and allyl carbonates. Notably, highly efficient and γ-selective C-H allylations were accomplished using γ-substituted allyl reagents, thus overcoming the issues of poor α/γ selectivity and low reactivity of previous
Rh(II)-Catalyzed C–N Bond Formation Using Enynones and N–H Imines: An Approach to Diarylmethylamines
作者:Ho-Jun Cho、Ye Lim Kim、Ju Hyun Kim
DOI:10.1021/acs.joc.2c02119
日期:2022.12.16
A Rh(II)-catalyzed furyl carbeneN–Hinsertion reaction involving an N-sp2-hybridized imine is described, which represents an atom-economical route by which to access diarylmethylamine derivatives with high efficiency and broad substrate scope. An unusual reaction mechanism is proposed, in which the rhodium catalyst plays a dual role in facilitating enynone cyclization via activation and enhancement