Bi(OTf) 3 catalyzed disproportionation reaction of cinnamyl alcohols
作者:Chieh-Kai Chan、Yu-Lin Tsai、Meng-Yang Chang
DOI:10.1016/j.tet.2017.05.006
日期:2017.6
Bi(OTf)3 catalyzed disproportionationreaction of cinnamyl alcohols provides chalcones and benzyl styrenes. The use of various metal triflates is investigated herein for facile and efficient redox transformation. A plausible mechanism has been proposed.
The invention provides specific small molecule compounds that allosterically regulate the activity or modulate protein-protein interactions of AGC protein kinases and the Aurora family of protein kinases, methods for their production, pharmaceutical compositions comprising same, and their use for preparing medicaments for the treatment and prevention of diseases related to abnormal activities of AGC protein kinases or of protein kinases of the Aurora family.
The invention provides specific small molecule compounds that allosterically regulate the activity or modulate protein-protein interactions of AGC protein kinases and the Aurora family of protein kinases, methods for their production, pharmaceutical compositions comprising same, and their use for preparing medicaments for the treatment and prevention of diseases related to abnormal activities of AGC protein kinases or of protein kinases of the Aurora family.
three carbon atoms were prepared, and intramolecularexcimerformation was investigated. All rate constants in Forster’s kinetics were determined by the steady state and time-resolved fluorescence measurements. A large difference in the association rate constant was observed with variation of molecular structure. The results suggest that intramolecularexcimerformation is directly controlled by the rotational
One‐Pot Construction of Sulfonyl Benzonorcaradienes
作者:Meng‐Yang Chang、Chun‐Yi Lin
DOI:10.1002/adsc.202300012
日期:2023.3.21
We report here on a one-pot stereoselective synthesis of strained sulfonyl benzonorcaradienes, which proceeds through base-mediated tandem annulation of o-bis-sulfonylmethyl arenes with diversified chalcones (α,β-unsaturated carbonyls) via intermolecular desulfonylative cyclopropanation, followed by intramolecular condensation. A plausible mechanism is proposed and discussed. The proposed synthetic