Ibis, "The vinylic
SN reactions of nitrodienes with heteroatom-substituted nuchleophilies and their structural studies," Heteroatom Chemistry, vol.
Brown crystals, Yield (1.97 g, 94%), m.p 218-220[degrees]C, IR (KBr, [v.sub.max] in [cm.sup.-1]): 3405 (-NH), 3101 (=C-H), 1894 (C=N), 1633 (C=C), [sup.1]H NMR (DMSO-[d.sub.6], 400 MHz) [delta] ppm: 6.91-6.95 (d, 1H, -C=CH (vinylic
proton), [J.sub.H-H] = 16.4 Hz), 7.16-7.18 (t, 1H, furan proton), 7.23-7.28 (q, 2H, phenylic protons), 7.44-7.45 (d, 1H, furan proton), 7.57-7.61 (q, 2H, phenylic protons), 7.67-7.68 (d, 1H, furan proton), 7.92-7.96 (d, 1H, -CH=C-(vinylic
proton), [J.sub.H-H] = 16.4 Hz), 10.0 (s, 1H, -NH of benzimidazole), [sup.13]C NMR (DMSO-[d.sub.6], 100 MHz) [delta] ppm: 114.47, 114.50, 122.87, 127.96, 128.51, 129.15, 129.48, 137.39, 140.33, 149.87 (6 aryl carbons, 4 furyl carbons, 2 vinylic
carbons and 1 imidazole quaternary carbon), MS (m/z): 211.10 ([M.sup.+*]), Anal.
(R)-tert-Butyl-3-(acryloyloxy)pyrrolidine-1-carboxylate (4, Method A) was isolated as a pale yellow oil (54.4%); [sup.1]H NMR [delta] 6.30 (d, [delta] = 5.8Hz, [sup.1]H, vinylic
CH); 5.99 (dd, [delta] = 3.5, 5.8Hz, [sup.1]H, vinylic
CH); 5.73 (d, [delta] = 3.5Hz, [sup.1]H, vinylic
CH); 5.23 (br m, [sup.1]H, ring diastereotopic 4-CH); 3.47 (m, 2H, N-C[H.sub.2]); 3.33 (m, 2H, N-C[H.sub.2]); 1.95 (m, 2H, ring 4-C[H.sub.2]); 1.34 (s, 9H, t-Bu C[H.sub.3]); [sup.13]CNMR[delta] 28.6, 30.9, 31.7, 43.7, 44.12, 51.5, 51.9, 73.3, 74.1, 79.7, 128.4, 131.4, 154.5, and 165.8; IR (film) 3061, 2977, 2885, 1727, 1620, 1479, 1412, 1366, 1297, 1270, 1192, 1117, and 1096 [cm.sup.?1].
0.87), one vinylic
group ([delta] 5.82, 5.04, 5.17) and two acetate methyls.
[sup.1]H NMR in (DMSO-[d.sub.6]), [delta]: 2.20 (s, 3H,- C[H.sub.3]); 4.88-4.80 (m, 2H, -O-C[H.sub.2]-C[F.sub.3]); 5.56 (s, 2H, -N-C[H.sub.2]-pyridine ring); 7.20-7.30 (d, 1H, vinylic
proton); 7.86 (s, 1H, indole ring protons); 7.67 (d, 1H, vinylic
proton); 73-8.23 (m, 8H, Ar-H); 7.44 (d,1H, pyridine-H); 8.21 (d, 1H, pyridine-H).
Lamination inks have primarily been based on PVB or vinylic
The signals in the 160-150 ppm range indicate the presence of vinylic
The Z and E isomers were not separated in all reactions; however, the Z/E ratio was obtained from the integration of the vinylic
proton signal: the vinylic
proton signal of the isomer Z appeared downfield from that of the isomer E.
In a landmark publication (Tetrahedron Lett., 1979, 3437) Professor Suzuki reported the discovery of a transition metal catalyzed cross coupling reaction between vinyl boronates and vinylic
halides in the presence of base to give, regio- and stereoselectively, diene products.
tellurides: from preparation to their applicability in organic synthesis," Chemical Reviews, vol.
It showed a molecular ion peak at 253 ([M.sup.+.]) corresponding to the molecular formula [C.sub.12][H.sub.15]N[O.sub.5].[In.sup.1] H-NMR spectrum methyl group appeared as a doublet at [delta] 1.80 (/ = 7.6 Hz) with vinylic
proton appearing as a quartet at [[delta].sub.H] 7.40 (] = 14.6 and 7.6 Hz) indicating that vinylic
proton is adjacent to methyl group.
Braskem s facility produces vinylic
materials, polyethylene and polypropylene to serve industries such as footwear, toys, housing, sanitation and infrastructure.