| 翻訳と辞書 |
spanphos
SPANphos is an organophosphorus compound used as a ligand in organometallic and coordination chemistry. This compound is a rare example of a trans-spanning ligand and rigidly links mutually trans coordination sites. By virtue of its chiral backbone that forms a chiral cavity over the face of a square planar complexes, e.g. in MCl2(SPANphos) (M = Pd, Pt).
==Synthesis==
This C2-symmetric trans-diphosphine is synthesized from inexpensive reagents. In the first step 4,4,4',4',6,6'-hexamethyl-2,2'-spirobichroman is prepared via an acid-catalyzed reaction between p-cresol and acetone. The spirane is brominated with N-bromosuccinimide, and the resulting dibromide is metalated with n-BuLi. Treatment of the resulting dilithio derivative with chlorodiphenylphosphine completes the synthesis.
:
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「spanphos」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|