Quaternary ammonium polychlorides as efficient reagents for chlorination of unsaturated compounds
摘要:
Chlorination of unsaturated compounds by benzyltributylammonium polychlorides results in higher yields of addition products compared to those obtained with molecular chlorine.
COMPOSITIONS AND PROCESSES FOR PHOTOGENERATION OF ACID
申请人:——
公开号:US20010008748A1
公开(公告)日:2001-07-19
Photochemical acid progenitors in combination with dihydroperimidine squarylium dyes have been found to be particularly effective at generating acid upon irradiation with near-infrared radiation. It has been found that dihydroperimidine squarylium dyes that are particularly useful in this invention have an oxidation potential greater than about 0.5 V relative to SCE as measured in dichloromethane.