Direct Conversion of Phosphonates to Phosphine Oxides: An Improved Synthetic Route to Phosphines Including the First Synthesis of Methyl JohnPhos
作者:Alexander J. Kendall、Chase A. Salazar、Patrick F. Martino、David R. Tyler
DOI:10.1021/om500854u
日期:2014.11.10
reaction intermediate. A diverse array of phosphonates was converted to phosphine oxides using a variety of Grignard reagents for direct carbon–phosphorus functionalization. This new methodology especially simplifies the synthesis of dimethylphosphino (RPMe2)-type phosphines by using air-, water-, and silica-stable intermediates. To highlight this reaction, a new Buchwald-type ligand ([1,1′-biphenyl]-
Novel pyrazolo- and pyrrolo-pyrimidines and uses thereof
申请人:——
公开号:US20030114467A1
公开(公告)日:2003-06-19
The invention relates to compounds of the general formula:
1
in which R
A
-R
C
and W are as defined herein, and to their preparation and use.
这项发明涉及一般公式为:1的化合物,其中RA-RC和W如本文所定义,以及它们的制备和用途。
Novel quinolines and uses thereof
申请人:——
公开号:US20030105065A1
公开(公告)日:2003-06-05
This invention relates to compounds of the general formula:
1
in which R
A
, R
B
, R
C
and R
D
are as defined herein, and to their preparation and use.
This invention relates to compounds of the general formula:
1
in which R
A
, R
B
and R
C
are as defined herein, and to their preparation and use.
这项发明涉及通式为的化合物:1其中RA、RB和RC的定义如本文所述,以及它们的制备和用途。
Novel indolinones and uses thereof
申请人:——
公开号:US20030130234A1
公开(公告)日:2003-07-10
This invention relates to compounds of the general formula:
1
in which R
A
, R
B
, R
C
, R
D
, R
E
, p, q and X are as defined herein, and to their preparation and use.