CAS: 983-81-3; (E)-1,2-Bis(Diphenylphosphino)Ethene

上下游产品

CAS号156-60-5 反-1,2-二氯乙烯 | CAS号829-85-6 二苯基膦 | CAS号1079-66-9 氯代二苯基膦 | CAS号5112-95-8 双(二苯基膦)炔

📜苄基二苯膦置于sodium体系中,用 四氢呋喃 作为反应溶剂,化学反应 1.5H,反应生成 反-1,2-双(二苯基磷基)乙烯
参考文献:通过钠选择性裂解c-P键从arcl制备有机膦的方法
标题:通过钠选择性裂解c-P键从arcl制备有机膦的方法
摘要:研究了磷化钠r 2 Pna和其他碱金属磷化物r 2 Pm(m = Li和k)的制备,应用和反应机理.r 2 Pna可以通过sd(精细分散在矿物油中的钠)与次膦酸酯r 2 Por'和氯膦r 2 Pc1的反应准确而选择性地制备.r 2 Pna也可以通过选择性裂解c-p键由三芳基膦和二芳基膦制备.在这些反应中,Na优于li和k.r 2 Pna与多种arcl反应以有效产生r 2Par.arcl优于arbr和ari,因为它们只会降低产品收率.另外,Ph 2 Pna优于ph 2 Pli和ph 2 Pk,因为ph 2 Pli不产生与phcl的偶联产物,而ph 2 Pk仅产生低产率的产物.arcl苯环上的吸电子基团极大地促进了与r 2 Pna的反应,而烷基降低了反应活性.氯乙烯和烷基氯rc1也有效地反应.当t-Bucl没有产生相应的产物,金刚烷基卤化物可以高产率得到相应的膦.通过这种方法,由相应的氯化物制备了多种膦.还可以方便地从ph
DOI:10.1021/acs.Organomet.0C00295

专利信息

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.

专利号:WO-9617856-A1
优先权日:1994-12-09
标题 :Synthesis of bidentate phosphines

专利号:AU-665388-B2
优先权日:1991-11-18
标题:Tetrazolylphenylboronic acid intermediates for the synthesis of AII receptor antagonists