87763-18-6Relevant articles and documents
Hydrophosphonylation of Alkynes with Trialkyl Phosphites Catalyzed by Nickel
Islas, Rosa E.,García, Juventino J.
, p. 4125 - 4131 (2017/10/09)
The use of simple and inexpensive NiCl2?6 H2O as a catalyst precursor for C?P bond formation in the presence of commercially available trialkyl phosphites (P(OR)3, R=Et, iPr, Bu, SiMe3) along with several alkynes is presented. Control experiments showed the in situ formation of (RO)2P(O)H as the species that undergo the addition into the C≡C bond at the alkynes to yield the product of P?H addition. The hydrophosphonylation of diphenylacetylene with P(OEt)3, P(OiPr)3, and P(OSiMe3)3 proceeds in high yields (>92 %) without the need of a specific solvent or ligand. This method is useful for the preparation of organophosphonates for both phenylacetylene as a terminal alkyne model and internal alkynes in yields that range from good to modest.
Synthesis and Reactions of Phosphoryl-Substituted Sulfines
Porskamp, Pascal A. T. W.,Lammerink, Ben H. M.,Zwanenburg, Binne
, p. 263 - 268 (2007/10/02)
The synthesis of a variety of phosphoryl-substituted sulfines 5 by the reaction of α-silyl carbanions with sulfur dioxide is described.For characterization purposes the prepared sulfines were converted into their cycloadducts 6 with 2,3-dimethyl-1,3-butad
