719-80-2, Ethoxydiphenylphosphine is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
719-80-2, General procedure: By analogy with 18a from solution alpha-chloroether 16a (1.25 g, 3.8 mmol) in Et2O (1mL) and ethyl diphenylphosphinite 17(0.87 g, 3.8 mmol) compound 18b in 77 % yield (1.44 g) was obtained, m.p. 146-148 C((isooctane).1H NMR (400 MHz, CDCl3, 20 C): delta 3.37(s, 3H, OMe), 5.02 (d, 2JPH= 13.3 Hz, 1H, PCH), 6.56 (s, 1H, CHBr2), 7.15-8.05 (m, 14H, C6H4, 2Ph) ppm. 13C NMR (100.61 MHz, CDCl3, 20 C): delta 40.7 (CHBr2), 59.0 (d, 3JPC= 12.48 Hz, OMe), 83.1 (d, 1JPC= 86.52 Hz, PCH), 128.4, 128.5, 128.6, 128.7, 129.4, 130.3, 130.6, 131.7, 131.8 (CH-aromatic), 128.8, 128.9, 132.3, 132.5, 132.6, 133.2, 135.4, 135.5, 135.6,135.7, 142.5, 142.6 (C-aromatic). 31P NMR (162 MHz, CCl4,20 C): delta 28.2 ppm. Anal. Calcd for C21H19Br2O2P: C, 51.04; H, 3.88; Br, 32.34; P, 6.27. Found: C, 50.81; H, 3.77; Br, 32.18; P, 6.14.
As the paragraph descriping shows that 719-80-2 is playing an increasingly important role.
Reference£º
Article; Gazizov, Mukattis B.; Ivanova, Svetlana Yu.; Bagauva, Liliya R.; Khairullin, Rafail A.; Musin, Rashid Z.; Tetrahedron Letters; vol. 57; 2; (2016); p. 210 – 212;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate