Go to content
UR Home

Stereoselective Chromium‐Catalyzed Semi‐Hydrogenation of Alkynes

Gregori, Bernhard J. ; Nowakowski, Michal ; Schoch, Anke ; Pöllath, Simon ; Zweck, Josef ; Bauer, Matthias ; Jacobi von Wangelin, Axel



Abstract

Chromium complexes have found very little applications as hydrogenation catalysts. Here, we report a Cr-catalyzed semi-hydrogenation of internal alkynes to the correspondingZ-alkenes with good stereocontrol (up to 99/1 for dialkyl alkynes). The catalyst comprises the commercial reagents chromium(III) acetylacetonate, Cr(acac)(3), and diisobutylaluminium hydride, DIBAL-H, in THF. The semi-hydrogenation operates at mild conditions (1-5 bar H-2, 30 degrees C).


Owner only: item control page
  1. Homepage UR

University Library

Publication Server

Contact:

Publishing: oa@ur.de
0941 943 4239

Dissertations: dissertationen@ur.de
0941 943 3904

Research data: daten@ur.de
0941 943 4239

Contact persons