Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Stefan H. Wunderlich"'
Publikováno v:
Chemistry - A European Journal. 19:14687-14696
A straightforward and efficient alumination of functionalized arenes by using the frustrated Lewis pair Et3 Al and TMPMgCl⋅LiCl (TMP=2,2,6,6-tetramethylpiperidyl) has been developed. In particular, halogenated electron-rich aromatics can be smoothl
Publikováno v:
Advanced Synthesis & Catalysis. 355:989-995
An improved process for the preparation of aromatic and heteroaromatic diorganozinc reagents and their subsequent reaction with electrophiles is presented. The new method, featuring the use of a 2,2,6,6-tetramethylpiperidyl (TMP) magnesium base in th
Publikováno v:
Synthesis. 2010:2670-2678
Highly functionalized organometallics are efficiently prepared in larger quantities (up to 4 g) by directed ortho-metalation using the previously reported amide bases TMP 2 Mn·2MgCl 2 ·4LiCl (TMP = 2,2,6,6-tetramethylpiperidyl), TMP 2 Fe·2MgCl 2
Autor:
Paul Knochel, Stefan H. Wunderlich
Publikováno v:
Chemistry - A European Journal. 16:3304-3307
Publikováno v:
Organic Process Research & Development. 14:339-345
A range of aryl and heteroaryl organometallics are efficiently prepared in THF via directed ortho metalation by using the previously reported amide bases tmpMgCl·LiCl (tmp = 2,2,6,6-tetramethylpiperidyl), tmp2Mg·2LiCl and tmp2Zn·2MgCl2·2LiCl. The
Autor:
Stefan H. Wunderlich, Paul Knochel
Publikováno v:
Angewandte Chemie. 121:9897-9900
Publikováno v:
Angewandte Chemie International Edition. 48:7256-7260
Gesteuerte Manganierung funktionalisierter Arene und Heterocyclen mithilfe von tmp2Mn⋅2 MgCl2⋅4 LiCl
Publikováno v:
Angewandte Chemie. 121:7392-7396
Publikováno v:
European Journal of Organic Chemistry. 2009:1781-1795
New mixed Li/Mg and Li/Mg/Zn amides have been synthesized starting from readily prepared secondary amines. They allow a highly chemoselective directed magnesiation or zincation of various polyfunctional aromatics and heteroaromatics. The kinetic basi
Autor:
Paul Knochel, Stefan H. Wunderlich
Publikováno v:
Angewandte Chemie International Edition. 48:1501-1504
Selective C-H activation with a series of neutral aluminum trisamide bases led to a wide range of polyfunctional aryl and heteroaryl aluminum reagents. Ester and cyano groups are stable under the reaction conditions for this direct alumination, and d