The direct anti-Markovnikov addition of mineral acids to styrenes
作者:Dale J. Wilger、Jean-Marc M. Grandjean、Taylor R. Lammert、David A. Nicewicz
DOI:10.1038/nchem.2000
日期:2014.8
hydrogen atom donor. The nucleophile counterion plays a critical role by ensuring high reactivity, with 2,6-lutidinium salts typically furnishing the best results. The nature of the redox-activehydrogen atom donor is also consequential, with 4-methoxythiophenol providing the best reactivity when 2,6-lutidinium salts are used. A novel acridinium sensitizer provides enhanced reactivity within several of
[EN] HIGHLY SOLUBLE ALKYL SUBSTITUTED CARBENIUM BORATE AS CO-CATALYSTS FOR OLEFIN POLYMERIZATIONS<br/>[FR] BORATE DE CARBÉNIUM SUBSTITUÉ PAR ALKYLE HAUTEMENT SOLUBLE EN TANT QUE CO-CATALYSEURS POUR POLYMÉRISATIONS D'OLÉFINES
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:WO2019191539A1
公开(公告)日:2019-10-03
Embodiments are directed to catalyst systems comprising: a procatalyst; and a co-catalyst, the co-catalyst comprising: a non-coordinating borate anion having the formula [B(C6F5)4]1- and a cation according to formula (I).
Methods of producing compounds that stimulate hair regrowth, topical formulations, and methods of use
申请人:Joventis S.A.
公开号:US10434049B2
公开(公告)日:2019-10-08
A method performing a Friedel-Crafts alkylation reaction between a dichloroalkane and an alkylbenzene produces a compound for hair regrowth. The inventive subject matter further includes incorporation of such compounds in topical formulations with suitable carriers. The resulting topical formulations may be employed in methods of stimulating hair regrowth.