CAS: 7688-25-7; 1,4-Bis(Diphenylphosphino)Butane

上下游产品

tetrachlorure d'°Ctaphenyl-1,1,4,4,9,9,12,12 tetraphosphonia-1,4,9,12 cyclohexadecane 1,4-dibromo-butane chloro-diphenylphosphine 1,4-dichlorobutane 1,4-bis(diphenyl(trimethylsilylimino)phosphoranyl)butane 4,4,9,9-tetraphenyl-4,9-diphosphonia-dodecadioic acid dichloride 1,4-bis(dicyclohexylphosphino)butane

1,4-Bis(Diphenylphosphinyl)Butane置于15-冠醚-5,Sodium Hydride,碳酸氢钠体系中,用 1,4-二氧六环 作为反应溶剂,化学反应 24.5H,反应生成 1,4-双(二苯基膦)丁烷
参考文献:通过酸酐亲电活化 P=o 键高度化学选择性还原氧化膦
标题:通过酸酐亲电活化 P=o 键高度化学选择性还原氧化膦
摘要:开发了在无过渡金属和碱性条件下使用 Tfaa/nah 化学选择性还原氧化膦的方法.该反应提供了一种将氧化膦转化为膦的有效方法.推测p=o键首先被tfaa亲电激活,形成鏻盐r 3 P(Ooccf 3) 2,随后被nah还原,并被15-Crown-5增强.
DOI:10.1002/ejoc.202300397

专利信息

专利号:US-4749806-A
优先权日:1984-12-28
标题:Process for the synthesis of isocyanates and of isocyanate derivatives
发明人：TKATCHENKO IGOR; JAOUHARI RABIH; BONNET MICHEL; DAWKINS GORDON; LECOLIER SERGE
权利人:POUDRES & EXPLOSIFS STE NALE
摘要:The present invention relates to a process for the synthesis of isocyanates and of isocyanate derivatives. Isocyanates are obtained by reacting an organic halide with a metal cyanate in an organic medium in the presence of a catalyst consisting of a complex of nickel with at least one organic ligand, in which complex the nickel is in the zero oxidation state. A carbamate or a urea, respectively, are obtained by a subsequent reaction with a hydroxy compound or a primary or secondary amine. Isocyanates and their derivatives are used especially either as refined synthesis agents for the production of pesticides and medications, or as monomers or comonomers for the preparation of many macromolecular compounds.

专利号:US-8410320-B2
优先权日:2010-12-07
标 题 :Method for synthesis of secondary alcohols
发明人：CHENG CHIEN-HONG; KARTHIKEYAN JAGANATHAN; HUANG PANG-CHI
权利人:CHENG CHIEN-HONG; KARTHIKEYAN JAGANATHAN; HUANG PANG-CHI; NAT UNIV TSING HUA
摘要:A method for synthesis of secondary alcohols is provided for pharmaceutical secondary alcohol by addition of organoboronic acids with aldehydes in presence of the cobalt ion and bidentate ligands as the catalyst. In addition, an enantioselective synthesis method for secondary alcohols is also herein provided in the present invention. The present invention has advantages in using less expensive cobalt ion and commercially available chiral ligands as the catalyst, wide scope of organoboronic acids and aldehydes compatible with this catalytic reaction and achieving excellent yields and/or enantiomeric excess.

专利号:US-9783519-B2
优先权日:2015-06-18
标 题:Palladium/silver co-catalyzed tandem reactions synthesis of phenylacetophenone derivatives by oxabenzonorbornadienes with terminal alkynes and their anti-tumor or anti-cancer activities
发明人：BIAN ZHAOXIANG; LIN CHENGYUAN; MU HUAIXUE; FAN BAOMIN; ZHOU YONGYUN; CHEN JINGCHAO; LU AIPING; CHAN ALBERT SUN-CHI
权利人:UNIV HONG KONG BAPTIST UNIV; UNIV YUNNAN MINZU
摘要:This invention relates to the quick and efficient synthesis of anti-tumor or anti-cancer compounds. More particularly, it relates to the quick and efficient synthesis of anti-tumor or anti-cancer compounds comprising phenylacetophenone derivatives using oxabenzonorbornadienes with terminal alkynes.

专利号:US-2025026768-A1
优先权日:2023-06-30
标题:Method for the synthesis of axially chiral organoboron compounds
发明人：PING YIFAN; CHE CHI-MING
权利人:LABORATORY FOR SYNTHETIC CHEMISTRY AND CHEMICAL BIOLOGY LTD
摘要:A highly efficient and atroposelective Rh-catalyzed [2+2+2] cycloaddition for the synthesis of axially chiral aryboron compounds is developed. The reactions of diynes and alkynylborons smoothly occur in an atom-economical manner, affording a variety of C—B atropisomers in excellent yields and enantioselectivities. The protocol features mild conditions, broad substrate scope, and good functional tolerance. The obtained C—B atropisomers show powerful synthetic applications in terms of producing novel chiral phosphine ligands.

专利号:US-2022298136-A1
优先权日:2019-08-21
标题 :Process for synthesis of pyrazolidinone compounds
发明人：MATHUR SUCHET SARAN; JAIN NANDKUMAR JANARDAN; MORE MAHENDRA MAHIPAT
权利人:GHARDA CHEMICALS LTD
摘要:A process for the synthesis of pyrazolidinone, particularly alkyl 2-(3-chloropyridin-2-yl)-5-oxo-pyrazolidine-3-carboxylate (pyrazolidinone) compound, is provided. The process is simple, economical, and produces alkyl 2-(3-chloropyridin-2-yl)-5-oxo-pyrazolidine-3-carboxylate with a comparatively high yields.

专利号:US-10793495-B2
优先权日:2015-08-14
标 题:Synthesis of polyaryl substituted aryl compounds
发明人：BOULOS RAMIZ; FEUTRILL JOHN
权利人:BOULOS & COOPER PHARMACEUTICALS PTY LTD
摘要:A method for the synthesis of a aryl compound of Formula (1).n nU T-W—R 1 ) n    (1)