273. Preparation and properties of allyl phosphines, arsines, and stannanes

Template synthesis of 9-membered triphospha-macrocycles with rigid o-phenylene backbone functions

“…In the P-H coupled, 31 P NMR spectrum, a broad singlet and doublet is observed confirming assignment of these two resonances to the tertiary and secondary phosphines respectively ( 2 J P-P is not well resolved in these spectra, as is the case for other 31 P NMR spectra described below). Satisfactory 1 H and 13 C NMR spectra and analytical data are consistent with the formulation. The molecular cation (m/z = 447 amu) was observed in the mass spectrum as was the P-H stretch in the IR spectrum (m P-H 2322 cm −1 ).…”

“…Analytical data and the 1 H and 13 C{ 1 H} NMR spectra are consistent with the structure of the macrocyclic complex (g 5 -pentamethylcyclopentadienyl)[meso-5 -vinyl -2,5,8 -triphosphabicyclo - [7.4.0]trideca-9(1),10,12-triene]iron(II) hexafluorophosphate (5a). The 1 H NMR spectrum clearly shows the separate components of 5a in the anticipated intensity ratios.…”

“…The second signal is assigned to the other secondary phosphine and the third as the tertiary phosphine (doublet, 1 J P-H = 352 Hz, and singlet in the 31 P NMR spectrum respectively), both appearing as double doublets (J BC = 6.6 Hz). As well as satisfactory analytical data, 5d is also characterised by its molecular ion in the mass spectrum (m/z = 475 amu), m P-H in the IR spectrum (2327 cm −1 ) and the 1 H and 13 C NMR data are consistent with the proposed structure.…”

Allylation of Aldehydes and Imines: Promoted by Reuseable Polymer‐Supported Sulfonamide of N‐Glycine.

“…6 m.p. 147.6 o C; 1 H NMR (d 6 -acetone) δ 7.75 (d, 2 H, J = 8.0 Hz), 7.37( d, 2 H, J = 7.8 Hz), 6.65 (d, 1 H, J = 5.4 Hz) 3.75 (d, 2 H, J = 5.8 Hz), 2.41 ( s, 3 H). IR (KBr): υ 3429, 3272,2976,1719,1631,1415,1336,1231,1157,1093,821 cm -1 .…”

Olivanic acid analogues. Part 2. Total synthesis of some C(6)-substituted 7-oxo-1 -azabicyclo[3.2.0] hept-2-ene-2-carboxylates

“…H, dt, J 6 and 9 Hz, 5a-H),5 20. (2 H, s, CH,Ph),5.80 (1 H, br d, J 15 Hz, 10-H),6.45 (1 H, t, J 3 Hz, 3-H), 6.84 (1 H, dt, J 15 and 6 Hz, 9-H), and 7.32 (5 H, s, Ph).…”