"Nok": a phytosterol-based amphiphile enabling transition-metal-catalyzed couplings in water at room temperature.
"Nok": a phytosterol-based amphiphile enabling transition-metal-catalyzed couplings in water at room temperature.
复制标题
DOI:
10.1021/jo401744b
复制
发表时间:
2014-02-07
期刊:
影响因子:
--
通讯作者:
Lipshutz BH
中科院分区:
文献类型:
--
作者:
Klumphu P;Lipshutz BH
The third generation designer amphiphile/surfactant, “Nok” (i.e., SPGS-550-M; β-sitosteryl polyoxoethanylsuccinate), soon to be commercially available from Aldrich, can be prepared in two steps using an abundant plant feedstock, β-sitosterol, together with succinic anhydride and PEG-550-M. Upon dissolution in water it forms nanomicelles that serve as nanoreactors, which can be characterized by both cryo-TEM and dynamic light scattering analyses. Several transition metal-catalyzed reactions have been run under micellar conditions to evaluate this surfactant relative to results obtained in nanoparticles composed of TPGS-750-M (i.e., a second generation surfactant). It is shown that Nok usually affords yields that are, in general, as good or better than those typically obtained with TPGS-750-M, and yet is far less costly.
登录
查看更多内容
影响因子:
9.8
作者:
Bai, L;Wang, JX;Zhang, YM
通讯作者:
Zhang, YM
影响因子:
9.8
作者:
Constable, DJC;Curzons, AD;Cunningham, VL
通讯作者:
Cunningham, VL
影响因子:
3.6
作者:
Chow, Wing Kin;Yuen, On Ying;Kwong, Fuk Yee
通讯作者:
Kwong, Fuk Yee
影响因子:
5.2
作者:
Hundertmark, T;Littke, AF;Fu, GC
通讯作者:
Fu, GC
影响因子:
16.6
作者:
Billingsley, Kelvin L.;Barder, Timothy E.;Buchwald, Stephen L.
通讯作者:
Buchwald, Stephen L.