CAS: 5112-95-8; 1,2-Bis(Diphenylphosphino)Ethyne

上下游产品

ethynyldimagnesium dibromide chloro-diphenylphosphine acetylene bis(diisopropylamino)phosphanylnitrile(diphenylphosphino-ethynyl)-methyl-diphenyl-phosphonium; iodide 1,1,4,4-tetrakis(diphenylphosphanyl)butatriene Tetraphenyldiphosphin 3-phosphinine2,3-bis(diphenylphosphino)-6-phenyl-λ3-phosphinine

Bis(Diphenylphosphinyl)Acetylene置于三苯碳四(五氟苯基)硼酸盐,苯硅烷体系中,用 氘代甲苯 作为反应溶剂,化学反应 1.5H,以50%的收率获得产物双(二苯基磷)乙炔
参考文献:三苯甲基阳离子介导的氧化膦还原
标题:三苯甲基阳离子介导的氧化膦还原
摘要:描述了使用phsih 3作为还原剂和ph 3 C + [b(C 6 F 5) 4]-作为引发剂将氧化膦还原成相应的膦.该方法效率很高,可以减少各种带有各种官能团的仲和叔烷基和芳基膦,收率通常很高.据信,该反应通过反应生成甲硅烷基阳离子进行,该阳离子与氧化膦反应提供鏻盐,进一步被硅烷还原以提供所需的膦和硅氧烷.
DOI:10.1002/adsc.202100189

专利信息

专利号:WO-0125179-A1
优先权日:1999-10-01
标 题:Preparation of tetracyclic intermediates
发明人：CHEN QING PING; WOODS ROSS ALEXANDER; ELLIOTT ROBYN LOUISE
权利人:INST OF DRUG TECHNOLOGY AUSTRA; CHEN QING PING; WOODS ROSS ALEXANDER; ELLIOTT ROBYN LOUISE
摘要:The invention provides a process for preparing deoxytetracyclic compounds of formula (I) useful in the synthesis of anthracyclines by the rearrangement of thiono ester derivatives followed by reduction, as well as intermediates useful therefor. In said formula, R is H or optionally protected OH.

专利号:US-7300639-B2
优先权日:2002-12-03
标 题:Process for removing metals from liquids
发明人：LIU WANSHENG
权利人:BRISTOL MYERS SQUIBB CO
摘要:A process is provided for removing one or more metals from liquids. Also provided is a process for the synthesis of aP2 inhibiting compounds having the formula (I) n nwherein R 1 , R 2 , R 3 , R 4 , HET, and X-Z are as described herein, which process comprising the step of removing one or more metals from a solution of the compound of formula I or an intermediate or precursor thereof. The processes for removing metal comprise the step of contacting the liquid with a solid extractant comprising a metal-binding functionality.