1065498-68-1Relevant academic research and scientific papers
An efficient synthesis of 2-(1-(E)-alkenyl)phenylphosphonates via Suzuki reaction of aryl nonaflates with (E)-1-alkenylboronates
Peng, Ai-Yun,Chen, Ba-Tian,Chen, Pei-Jiang
, p. 58 - 62 (2013/06/27)
An efficient and general Suzuki coupling reaction between 2-phosphonylaryl nonaflates and (E)-1-alkenylboronic pinacol esters using Pd(OAc) 2/PPh3 as catalysts, K2CO3 as base and DMF as solvent has been develope
Anomalies in the stereoselectivity of the petasis reaction using styrenyl boronic acids
Churches, Quentin I.,Johnson, James K.,Fifer, Nathan L.,Hutton, Craig A.
scheme or table, p. 62 - 67 (2011/10/05)
The Petasis three-component coupling reaction of N-benzylphenylglycinol, glyoxylic acid, and styrenylboronic acids allows for the efficient synthesis of functionalized homoarylalanine derivatives. The reactions were shown to proceed in high yield but low selectivity, regardless of the nature of the substituent on the styrenylboronic acid component. Anomalies in the stereoselectivity of these reactions compared with previously reported results have been traced to the source of the organoboronic acid. Asymmetric dihydroxylation of the unsaturated amino acid derivatives enables a highly efficient route to dihydroxyhomoarylalanine derivatives. CSIRO 2011.
Hydroboration of vinyl arenes using SiO2-supported rhodium catalysts
Geier, Michael J.,Geier, Stephen J.,Vogels, Christopher M.,Béland, Fran?ois,Westcott, Stephen A.
experimental part, p. 477 - 481 (2009/10/01)
The metal-catalyzed hydroboration of vinyl arenes using catecholborane (HBcat) and pinacolborane (HBpin) has been examined with SiO2- supported rhodium catalysts. Reactions with simple vinyl arenes (ArCH=CH 2) and HBcat using Rh(acac
Synthesis, characterization, and reactivity of rhodium(I) acetylacetonato complexes containing pyridinecarboxaldimine ligands
Kanas, Diane A.,Geier, Stephen J.,Vogels, Christopher M.,Decken, Andreas,Westcott, Stephen A.
, p. 8727 - 8735 (2009/03/11)
Addition of o-C6H4NCH=NAr to Rh(coe) 2(acac) (coe = cis-cyclooctene, acac = acetylacetonato) gave several new iminopyridine rhodium(I) complexes of the type Rh(acac)(κ2- o-C6H4NCH=NAr) (1a Ar = 4-C6H4-OMe; 1b Ar = 2,6-C6H3-Me2; 1c Ar = 2,6-C 6H3-Et2; 1d Ar = 2,6-C6H 3-i-Pr2). All new rhodium complexes have been characterized by a number of physical methods, including multinuclear NMR spectroscopy and X-ray diffraction studies for 1b and 1c. Addition of CHCl 3 to 1a afforded the corresponding rhodium(III) complex trans-Rh(κ2-o-C6H4NCH=NAr)(CHCl 2)(Cl)(acac) (2). Addition of B2cat3 (cat = 1,2-O2C6H4) to 1 gave zwitterionic Rh(η6-catBcat)(κ2-o-C6H 4NCH=NAr) (3). The molecular structure of 3b has been confirmed by a single crystal X-ray diffraction study and shows that the N2Rh fragment is bound to the catBcat anion via one of the catecholato groups in a η6-fashion. These complexes have also been examined for their ability to catalyze the hydroboration of a series of vinylarenes. Reactions using catecholborane and pinacolborane seem to proceed largely through a dehydrogenative borylation mechanism to give a number of boronated products.
