Highly Chemoselective Metal-Free Reduction of Phosphine Oxides to Phosphines
摘要:
Unprecedented chemoselective reductions of phosphine oxides to phosphines proceed smoothly in the presence of catalytic amounts of specific Bronsted acids. By utilizing inexpensive silanes, e.g., PMHS or (EtO)(2)MeSiH, other reducible functional groups such as ketones, aldehydes, olefins, nitriles, and esters are well-tolerated under optimized conditions.
INFRARED ABSORBING COMPOSITIONS, INFRARED CUT FILTERS, CAMERA MODULES AND PROCESSES FOR MANUFACTURING CAMERA MODULES
申请人:FUJIFILM Corporation
公开号:US20160011336A1
公开(公告)日:2016-01-14
Provided are infrared absorbing compositions that allow for preparing infrared absorption patterns having good adhesiveness to substrates on which the infrared absorbing composition is applied. The infrared absorbing composition contains an infrared absorbing material, and a polymerizable compound containing a partial structure represented by formula (1) below: wherein R
1
represents a hydrogen atom or an organic group; the asterisk (*) indicates a point of attachment to another atom.
Highly Chemoselective Metal-Free Reduction of Phosphine Oxides to Phosphines
Unprecedented chemoselective reductions of phosphine oxides to phosphines proceed smoothly in the presence of catalytic amounts of specific Bronsted acids. By utilizing inexpensive silanes, e.g., PMHS or (EtO)(2)MeSiH, other reducible functional groups such as ketones, aldehydes, olefins, nitriles, and esters are well-tolerated under optimized conditions.