Phosphine-Free NNN-Manganese Complex Catalyzed α-Alkylation of Ketones with Primary Alcohols and Friedländer Quinoline Synthesis
作者:Milan K. Barman、Akash Jana、Biplab Maji
DOI:10.1002/adsc.201800380
日期:2018.9.3
a very simple and inexpensive catalytic system based on Earth's abundant transition metalmanganese and on a bench‐stable phosphine‐free NNN‐pincer ligand for an atom‐efficient α‐alkylations of ketones with primary alcohols via hydrogen‐autotransfer C−C bond formation protocol. The precatalyst could be generated in situ and could be activated by using catalyticamount of base under milder conditions
Selective cross coupling via oxovanadium(V)-induced oxidative desilylation of benzylic silanes
作者:Toshikazu Hirao、Takashi Fujii、Yoshiki Ohshiro
DOI:10.1016/0040-4039(94)80034-0
日期:1994.10
Benzylic silanes bearing an electron-donating group at the ortho- or para-position underwent the oxovanadium(V)-induced one-electron oxidative desilylation due to low ionization potential, which was applied to the intermolecular regioselective coupling with allylic silanes or silyl enol ether.
Ni-Catalyzed Reductive Coupling of Alkyl Acids with Unactivated <i>Tertiary</i> Alkyl and Glycosyl Halides
作者:Chenglong Zhao、Xiao Jia、Xuan Wang、Hegui Gong
DOI:10.1021/ja510653n
日期:2014.12.17
highlights Ni-catalyzed reductivecoupling of alkyl acids with alkyl halides, particularly sterically hindered unactivated tertiary alkyl bromides for the production of all carbon quaternary ketones. The reductive strategy is applicable to α-selective synthesis of saturated, fully oxygenated C-acyl glycosides through easy manipulations of the readily available sugar bromides and alkyl acids, avoiding otherwise
COMPOUNDS FOR THE TREATMENT OF CANCER AND INFLAMMATORY DISEASE
申请人:SHY Therapeutics LLC
公开号:US20170174699A1
公开(公告)日:2017-06-22
Provided herein are compounds that inhibit the phosphorylation of MAPK and thus are useful in compositions and methods for treating cancer and inflammatory disease.
alkylation of enolates and acetylides has been achieved through the use of a decarboxylative benzylation strategy. Previous research in this area is often limited by the need for extended conjugation in the electrophiles that are coupled. Herein, we report that the use of 1,1'-bis(diphenylphosphino)ferrocene (dppf) ligand allows the coupling of simple benzyl electrophiles with enolates, while the use