Copper-Catalyzed Radical Aminotrifluoromethylation of Alkenes
作者:Haiwen Xiao、Haigen Shen、Lin Zhu、Chaozhong Li
DOI:10.1021/jacs.9b06141
日期:2019.7.24
We report herein an unprecedented protocol for aminotrifluoromethylation of alkenes. With Cu(OTf)2 as the catalyst, the reaction of alkenes, (bpy)Zn(CF3)2 and N-fluorobis(benzenesulfonyl)imide (NFSI) at room temperature provides the corresponding aminotrifluoromethylation products in satisfactory yields with high regioselectivity opposite to those driven by CF3 radical addition. The method exhibits
Asymmetric Copper-Catalyzed Intermolecular Aminoarylation of Styrenes: Efficient Access to Optical 2,2-Diarylethylamines
作者:Dinghai Wang、Lianqian Wu、Fei Wang、Xiaolong Wan、Pinhong Chen、Zhenyang Lin、Guosheng Liu
DOI:10.1021/jacs.7b02455
日期:2017.5.24
After addition to styrene, the generated benzylic radical could couple with a chiral L*CuIIAr complex to achieve enantioselective arylation. Various optical 2,2-diarylethylamines were efficiently synthesized from simple styrenes with high enantioselectivity, and these products can serve as valuablesynthons toward bioactive molecules' synthesis.
Substituted Pyridine, Pyridazine, Pyrazine And Pyrimidine Compounds And Methods For Using The Same
申请人:Goff Dane
公开号:US20120028954A1
公开(公告)日:2012-02-02
Disclosed are substituted pyridine compounds as well as pharmaceutical compositions and methods of use. One embodiment is a compound having the structure
wherein E, J, T, the ring system denoted by “B”, T, R
3
, R
4
, w and x are as described herein. In certain embodiments, a compound disclosed herein activates the AMPK pathway, and can be used to treat metabolism-related disorders and conditions.
To provide a method for producing a difluoro compound highly selectively in good yield without forming a hardly soluble by-product. An ester compound of the formula (1) is reacted and fluorinated with an electrophilic fluorinating agent in the presence of a basic compound and in the absence of a metal compound reactant to produce a difluoro ester compound of the formula (2).
wherein R
1
is a C
1-30
alkyl group which may have a substituent, etc., and R
2
is a C
1-30
hydrocarbon group which may have a substituent, or R
1
and R
2
are bonded to form an alkylene group which forms, together with —C—C(O)—O—, a lactone ring.