129705-30-2Relevant academic research and scientific papers
Synthesis of (±)-trans-2,5-diisopropylborolane
Laschober, Gerhard,Zorzi, Massimo,Hodgetts, Kevin J.
, p. 244 - 252 (2001)
The cyclic hydroboration of 2,7-dimethyl-2,6-octadiene (6) was studied. It was found that the stereochemical outcome of the reaction was dependent upon the solvent, temperature, time and the nature of the borane reagent. Pure racemic trans-2,5-diisopropyl
New chiral phospholanes; synthesis, characterization, and use in asymmetric hydrogenation reactions
Burk,Feaster,Harlow
, p. 569 - 592 (2007/12/18)
We describe the practical synthesis of enantiomerically pure trans-2,5-disubstituted-1-phenylphospholanes which are then employed in the preparation of a new series of C2-symmetric bis- and C3-symmetric tris(phospholane) ligands. A versatile three-step route to the important chiral 1,4-diol intermediates, used in the phosphine syntheses, is outlined. Rhodium complexes bearing the new phosphine ligands were prepared and shown to act as efficient catalyst precursors for the enantioselective hydrogenation of various unsaturated substrates.
Remote Stereocontrol by utilizing Intramolecular Carbonyl Reduction with Boranes
Harada, Toshiro,Matsuda, Yasuhiro,Imanaka, Satoru,Oku, Akira
, p. 1641 - 1643 (2007/10/02)
A simple and efficient method for the remote (1,4- and/or 1,5-) stereocontrol was realized by utilizing an intramolecular carbonyl reduction with ThexBH2 (Thex = 1,1,2-trimethylpropyl).
