Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Yuta Saga"'
Publikováno v:
Inorganics, Vol 5, Iss 1, p 5 (2017)
P-Fluorous phosphine (R2PRf), in which the perfluoroalkyl group is directly bonded to the phosphorus atom, is a promising ligand because it has a hybrid functionality, i.e., electron-poor and fluorous ligands. However, examples of P-fluorous phosphin
Externí odkaz:
https://doaj.org/article/b388d4a8847b41139952bc4afc408cdc
Autor:
Li-Biao Han, Shu Kobayashi, Shun-ya Onozawa, Jian-Qiu Zhang, Norihisa Fukaya, Jingjing Ye, Kazuhiko Sato, Yuta Saga
Publikováno v:
Organometallics. 39:2682-2694
The preparation, application, and reaction mechanism of sodium phosphide R2PNa and other alkali metal phosphides R2PM (M = Li and K) have been studied. R2PNa could be prepared, accurately and selec...
Autor:
Li-Biao Han, Shu Kobayashi, Kazuhiko Sato, Chunya Li, Yuta Saga, Norihisa Fukaya, Shun-ya Onozawa
Publikováno v:
The Journal of organic chemistry. 85(22)
A "wet" process and two "dry" processes for converting phosphonate esters to phosphonic acids catalyzed by a Bronsted acid have been developed. Thus, in the presence of water, a range of alkyl-, alkenyl-, and aryl-substituted phosphonates can be gene
Publikováno v:
The Journal of Organic Chemistry. 83:8743-8749
Radical hydrophosphorylation of aliphatic terminal alkynes with H-phosphine oxides can produce the corresponding anti-Markovnikov alkenylphosphorus adducts in moderate yields. This method is a cleaner approach for the preparation of the corresponding
Publikováno v:
Tetrahedron. 73:7085-7093
Trimethyl phosphine was used as an efficient catalyst for the addition of P(O)-H compounds to electron-deficient alkenes. The addition reactions were generally conducted using a catalytic amount of Me3P under mild reaction conditions. Both 1 to 1 and
Publikováno v:
Tetrahedron: Asymmetry. 28:84-89
A variety of P -stereogenic organophosphorus compounds can be readily prepared by stereoretentive addition. The PMe 3 -catalyzed addition of optically active (−)MenthylO(Ph)P(O)H compounds to electron deficient alkenes occur stereospecifically, to
Publikováno v:
Green Chemistry. 19:1502-1506
An air-induced double addition of diphenyl phosphine oxide to various alkynes is reported. This reaction can proceed efficiently under metal- and solvent-free conditions, and is a clean and practically useful method for the preparation of the valuabl
Publikováno v:
The Journal of organic chemistry. 83(15)
Radical hydrophosphorylation of aliphatic terminal alkynes with H-phosphine oxides can produce the corresponding anti-Markovnikov alkenylphosphorus adducts in moderate yields. This method is a cleaner approach for the preparation of the corresponding
Publikováno v:
Tetrahedron Letters. 56:5303-5305
A convenient and versatile method was developed for the preparation of 1,2-bisphosphorylethanes. Thus, in the presence of a catalytic amount of trimethylphosphine, a variety of >P(O)H compounds efficiently add to vinylphosphoryl compounds to produce
Publikováno v:
RSC Advances. 5:71544-71546
Chloroform-based Atherton–Todd-type reactions of alcohols and thiols with secondary phosphine oxides, generating phosphinothioates and phosphinates, respectively, are described. Various valuable phosphinothioates and phosphinates including those wi