6104-47-8Relevant articles and documents
Diethyl (iodoethynyl)phosphonate and (iodoethynyl)diphenylphosphane oxide: Crystal structures and some cycloaddition reactions
Marian, Aline,Maas, Gerhard
, p. 529 - 536 (2020)
The title compounds are difunctionalized acetylenic building blocks, which can serve as electrophilic dienophiles and dipolarophiles in [4+2] and azide-iodoalkyne [3+2] cycloaddition reactions, which, however, require strong thermal activation. In their c
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.
Process-Controlled Regiodivergent Copper-Catalyzed Azide-Alkyne Cycloadditions: Tailor-made Syntheses of 4- And 5-Bromotriazoles from Bromo(phosphoryl)ethyne
Okuda, Yasuhiro,Imafuku, Kazuto,Tsuchida, Yoshiyuki,Seo, Tomoyo,Akashi, Haruo,Orita, Akihiro
supporting information, p. 5099 - 5103 (2020/07/03)
We developed a regiodivergent syntheses of 4- and 5-bromo-substituted 1,2,3-triazoles in copper-catalyzed azide-alkyne cycloadditions (CuAACs) by taking advantage of bromo(phosphoryl)ethyne 1 as a bromoethyne equivalent. A one-shot dephosphorylative CuAAC
Versatile Reaction Patterns of Phosphanylhydrosilylalkyne with B(C6F5)3: A Remarkable Group Substitution Effect
Huang, Yanting,Jiang, Wenjun,Xi, Xin,Li, Yan,Wang, Xiaoping,Yang, Ming-Chung,Zhang, Zheng-Feng,Su, Ming-Der,Zhu, Hongping
, p. 3496 - 3506 (2020/07/15)
Phosphanylhydrosilylalkynes R2HSiCCPAr2 (R,Ar: Me,4-tBuC6H4 1, Me,Mes 2, Mes,Ph 3; Mes = 2,4,6-Me3C6H2) were prepared and the reactions with B(C6F5)3/
Synthesis of Ph2P(O)-stabilized Ynamines via C(sp)-N bond formation and their dephosphorylative copper-catalyzed click reaction
Okuda, Yasuhiro,Seo, Tomoyo,Shigezane, Yuki,Watanabe, Hikaru,Akashi, Haruo,Iwanaga, Tetsuo,Orita, Akihiro
supporting information, p. 1484 - 1487 (2019/12/02)
A facile and versatile synthesis of ynamines via C(sp)-N bond formation was established. We installed an electron-withdrawing phosphoryl group onto the ynamines to isolate them by column chromatography. Phosphoryl ynamines were synthesized by treatment of
PHOSPHOROUS COMPOUND AND TRANSITION METAL COMPLEX THEREOF
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Paragraph 0095-0099, (2015/03/16)
The present invention provides a phosphorous compound represented by general formula (1), and transition metal complexes containing such phosphorous compounds as ligands: wherein R1 to R7, A, B, Y, and Z have the same meanings as those defined in the specification.
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.
Reaction of diphenylphosphanylacetylene with RB(C6F 5)2 reagents: Evidence for a remarkable sequence of synergistic frustrated Lewis pair addition reactions
Yu, Jiangang,Kehr, Gerald,Daniliuc, Constantin G.,Erker, Gerhard
supporting information, p. 11661 - 11668 (2013/10/22)
Diphenylphosphanylethyne (3a) reacts with tris(pentafluorophenyl)borane at room temperature by a typical frustrated Lewis pair (FLP) reaction. It undergoes a sequential series of 1,2-phosphane/borane additions to the alkyne unit in an overall 2:2 molar ra
Diphenylphosphinoylethylidene (DPE) acetals: an alternative protective strategy in glycochemistry
Pellizzaro, Leonardo,Tatibou?t, Arnaud,Fabris, Fabrizio,Rollin, Patrick,Lucchi, Ottorino De
scheme or table, p. 101 - 103 (2009/04/14)
Diphenylphoshinoylethyne reacts with diols under basic conditions to produce cycloacetalic phosphine oxides. The reaction appears to be general and particularly effective with carbohydrate derivatives. The 2-(diphenylphoshinoyl)ethylidene (DPE) acetals produced are stable in acidic media while they can be cleaved under reductive and/or basic conditions: base-catalyzed transacetalization is a method of choice for their mild and effective deprotection.
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
