7608-17-5Relevant articles and documents
Using Catalysts to Make Catalysts: Titanium-Catalyzed Hydroamination to Access P,N-Ligands for Assembling Catalysts in One Pot
Hao, Han,Bagnol, Thibault,Pucheault, Mathieu,Schafer, Laurel L.
supporting information, p. 1974 - 1979 (2021/04/05)
Using a diamido-bis(amidate) titanium precatalyst, the hydroamination of alkynylphosphines afforded phosphinoenamine products. After reduction, 2-aminophosphines are prepared in excellent yield and on gram scale. A broad variety of alkynylphosphines and primary amines with different electronic and steric features are tolerated in this sequential transformation, enabling the rapid assembly of a collection of ligands. Additionally, intermediate phosphinoenamines can be used directly as proligands for coordination to transition metals using protonolysis or salt metathesis reactions. These transformations result in easy-to-use one pot protocols to prepare metal P,N-complexes for catalysis or small molecule activation.
Azobisisobutyronitrile-Initiated Oxidative C-H Functionalization of Simple Alcohols with Diaryl(arylethynyl)phosphine Oxides: A Metal-Free Approach toward Hydroxymethyl Benzo[ b]phosphole Oxides and 6 H-Indeno[2,1- b]phosphindole 5-Oxide Derivatives
Guo, Jiami,Mao, Chenlu,Deng, Bin,Ye, Liyi,Yin, Yingwu,Gao, Yuxing,Tu, Song
, p. 6359 - 6371 (2020/07/14)
The first metal-free and facile radical addition/cyclization of simple alcohols with diaryl(arylethynyl)phosphine oxides has been described with azobisisobutyronitrile as a radical initiator, affording an efficient and one-pot procedure to access a new cl
Chromium catalysts for ethylene trimerization/tetramerization functionalized with ortho-fluorinated arylphosphine ligand
Lee, Hoseong,Joe, Yongnam,Park, Hyoseung
, p. 15 - 18 (2019/01/04)
A series of novel asymmetric bidentate phosphines with ortho?fluorine substituents was developed and characterized. In combination with chromium, the compound gave high activity to 1-hexene and 1-octene (approaching 3200 kg/g Cr/h) and high combined selec
2-Zincoethylzincation of 2-Alkynylamines and 1-Alkynylphosphines Catalyzed by Titanium(IV) Isopropoxide and Ethylmagnesium Bromide
Kadikova, Rita N.,Ramazanov, Ilfir R.,Mozgovoi, Oleg S.,Gabdullin, Azat M.,Dzhemilev, Usein M.
supporting information, p. 311 - 314 (2019/02/12)
Titanium(IV) isopropoxide and ethylmagnesium bromide catalyzed reaction of 2-alkynylamines with Et 2 Zn, followed by deuterolysis/hydrolysis and iodinolysis, affords substituted (Z)-pent-2-en-2,5- d 2 -1-amines, (Z)-pent-2-en-1-amine
Selective deprotection of Me3Si-/Ph2P(O)-protected arylalkynes: Methyl Grignard reagent-promoted dephosphorylation of Ph2P(O)-protected alkynes
Peng, Lifen,Xu, Feng,Shinohara, Kenta,Orita, Akihiro,Otera, Junzo
supporting information, p. 1610 - 1612 (2014/12/11)
A Ph2P(O)-protected alkyne underwent dephosphorylation by treatment with MeMgBr in THF with Me3Si-protection untouched. The dephosphorylation followed by a transition-metal-catalyzed coupling of the resulting terminal a lkyne with aryl halides was carried out in a one-pot manner to afford the desired coupling product. Selective deprotection of Me3Si-/Ph2P(O)-protected alkynes enabled facile syntheses of expanded π-systems such as cyclic phenyleneethyny lenes and unsymmetrically substituted ditriazol.
N-P bond cleavage induced ring formation of cyclosilazanes from reactions of aryl(phosphanyl)aminotrichlorosilanes with lithium alkynyls
Wang, Jinjin,Liu, Rui,Ruan, Wenqing,Li, Yan,Mondal, Kartik Chandra,Roesky, Herbert W.,Zhu, Hongping
, p. 2696 - 2703 (2014/06/24)
The aryl(silyl)aminotrichlorosilane 2,6-iPr2C6H 3N(SiMe2Ph)SiCl3 (1) and aryl(phosphanyl) aminotrichlorosilane ArN(PPh2)SiCl3 (Ar = 2,6-iPr 2C6H3
One-pot transformation of Ph2P(O)-protected ethynes: Deprotection followed by transition metal-catalyzed coupling
Peng, Lifen,Xu, Feng,Suzuma, Yoshinori,Orita, Akihiro,Otera, Junzo
, p. 12802 - 12808 (2014/01/17)
Ph2P(O)-protected ethynes were successfully transformed to arylethynes in one-pot manner through t-BuOK-catalyzed deprotection followed by Sonogashira coupling with aryl halide. The arylethynes were obtained similarly by Ph2P(O)-deprotection, stannylation of the resulting terminal ethynes, and Migita-Kosugi-Stille coupling. Deprotection followed by intramolecular Eglinton coupling could be carried out in one-pot to provide cyclic butadiynes.
Ph(O) group for protection of terminal acetylenes
Yang, Xin,Matsuo, Daisuke,Suzuma, Yoshinori,Fang, Jing-Kun,Xu, Feng,Orita, Akihiro,Otera, Junzo,Kajiyama, Shingo,Koumura, Nagatoshi,Hara, Kohjiro
supporting information; experimental part, p. 2402 - 2406 (2011/11/05)
A protecting group Ph(O) for terminal ethyne was newly developed. This protecting group can be introduced readily to terminal ethyne by CuI-catalyzed phosphination and subsequent oxidation with H Ph(O)-protected ethynes remained intact in Sonogashira coup
Reactions of (Me2C)(Me2Si)[(η5-C 5H3)Mo(CO)3]2 with phosphanylalkynes: Rearrangement of phosphanylalkynes into phosphido-substituted vinylidenyl ligands by cleavage of the P-C(al
Li, Bin,Xu, Shansheng,Song, Haibin,Wang, Baiquan
scheme or table, p. 5494 - 5504 (2009/05/06)
This article deals with the thermal reactions of the doubly bridged bis(cyclopentadienyl) dinuclear molybdenum complex (Me2C)(Me 2Si)[(η5-C5H3)Mo(CO) 3]2 (1) with a series of pho
Copper-catalyzed anti-hydrophosphination reaction of 1-alkynylphosphines with diphenylphosphine providing (Z)-1,2-diphosphino-1-alkenes
Kondoh, Azusa,Yorimitsu, Hideki,Oshima, Koichiro
, p. 4099 - 4104 (2007/10/03)
Hydrophosphination of 1-alkynylphosphines with diphenylphosphine proceeds in an anti fashion under copper catalysis, providing an easy and efficient access to a variety of (Z)-1,2-diphosphino-1-alkenes and their sulfides. The reaction is highly chemoselec
