Category «spectroscopy»

tert-Butyl 4-(2,3-diaminophenyl)piperazine-1- carboxylate

tert-Butyl 4-(2,3-diaminophenyl)piperazine-1- carboxylate (4) 1H NMR (400 MHz, CDCl3), δ in ppm = 6.68 (t, 1H), 6.59 (d, J = 8.8 Hz, 1H), 6.55 (d, J = 7.6 Hz, 1H), 3.56 (br s, 8H), 2.83 (s, 4H), 1.49 (s, 9H). This is consistent with literature data.1 Small molecule piperazinyl-benzimidazole antagonists of the gonadotropin-releasing hormone …

2,4-Diphenyl-2,3-dihydro-1,5-benzothiazepine

2,4-Diphenyl-2,3-dihydro-1,5-benzothiazepine (4a) 1,3-Diphenyl-2-propen-1-one (1a). Yellow solid; mp 114-116 C [lit.1 , 114-115 °C], AcOEt/PE 1:9. 1H NMR (300 MHz, CDCl3,): 3.07 (t, J = 12.6 Hz, 1 H), 3.32 (dd, J = 4.7, 13.1 Hz, 1 H), 4.99 (dd, J = 4.5, 12.0 Hz, 1 H), 7.12-7.17 (m, 1 H), 7.25-7.30 (m, 5 H), 7.44-7.51 …

1-(Ferrocenyl(phenyl)methyl)pyrrolidine

1-(Ferrocenyl(phenyl)methyl)pyrrolidine (1b) was obtained (2.14 g, 62% yield) as an orange solid. m.p. 100-102 oC; 1H NMR (400 MHz, CDCl3) δ 7.53 (d, J = 7.6 Hz, 2H), 7.38 (t, J = 7.6 Hz, 2H), 7.29 (t, J = 7.6 Hz, 1H), 4.18 (s, 2H), 4.12 (s, 1H), 4.07 (s, 1H), 3.80 (s, 1H), …

Cross dehydrogenative coupling of N-aryltetrahydroisoquinolines (sp3 C-H) with indoles (sp2 C-H) using a heterogeneous mesoporous manganese oxide catalyst

Cross dehydrogenative coupling of N-aryltetrahydroisoquinolines (sp3 C-H) with indoles (sp2 C-H) using a heterogeneous mesoporous manganese oxide catalyst Green Chem., 2017, Advance Article DOI: 10.1039/C7GC01919J, Communication B. Dutta, V. Sharma, N. Sassu, Y. Dang, C. Weerakkody, J. Macharia, R. Miao, A. R. Howell, S. L. Suib We disclose a novel, heterogeneous catalytic approach for selective …

4-(quinolin-2-ylsulfonyl)benzonitrile

4-(quinolin-2-ylsulfonyl)benzonitrile (3ia)5 1H NMR (400 MHz, CDCl3):  = 8.43 (d, J = 8.4 Hz, 1 H), 8.28 – 8.22 (m, 3 H), 8.12 (d, J = 8.4 Hz, 1 H), 7.91 (d, J = 8.4 Hz, 1 H), 7.85 – 7.80 (m, 3 H), 7.70 (t, J = 8.0 Hz, 1 …

1,2-Bis(3-methoxyphenyl)benzene

1,2-Bis(3-methoxyphenyl)benzene (5) 1H NMR (500 MHz, DMSO-d6): δ 3.59 (s, 6H), 6.65 (dd, J = 2.5, 1.5 Hz, 2H), 6.70 (ddd, J = 7.5, 1.5, 1.0 Hz, 2H), 6.78 (ddd, J= 8.0, 2.5, 1.0 Hz, 2H), 7.16 (t, J = 8.0 Hz, 2H), 7.40–7.46 (m, 4H). 13C NMR (126 MHz, DMSO-d6): δ 54.8, 112.4, 115.0, 121.7, 127.7, 129.0, 130.2, 139.8, 142.4, 158.7. …

Polymers from biomass: one pot two-step synthesis of furilydenepropanenitrile derivatives with MIL-100(Fe) catalyst

Polymers from biomass: one pot two-step synthesis of furilydenepropanenitrile derivatives with MIL-100(Fe) catalyst Catal. Sci. Technol., 2017, 7,3008-3016 DOI: 10.1039/C7CY00463J, Paper Anastasia Rapeyko, Karen S. Arias, Maria J. Climent, Avelino Corma, Sara Iborra Monomers from biomass have been prepared from HMF and methylene active compounds through a one pot process using MIL-100(Fe)/TEMPO/NaNO2 as the catalytic system. Polymers …

N‒(4’‒methoxyCinnamyl)aniline ( NMR IS EASY)

N‒(4’‒methoxyCinnamyl)aniline N‒(4’‒Methoxycinnamyl)aniline (3s): Yellow brown solid (203 mg, 85% yield), mp. 75 oC, 1H NMR (CDCl3, 600 MHz): δ 3.86 (s, 3H), 3.94 (d, 2H, J = 11.5 Hz), 6.20‒ 6.29 (m, 1H), 6.60 (d, 1H, J = 15.9 Hz), 6.74 (d, 2H, J = 8.28 Hz), 6.80 (t, 1H, J = 6.9 Hz), …

CuI nanoparticles as recyclable heterogeneous catalysts for C-N bond formation reactions

CuI nanoparticles as recyclable heterogeneous catalysts for C-N bond formation reactions Catal. Sci. Technol., 2017, 7,2857-2864 DOI: 10.1039/C7CY00832E, Paper Manoranjan Kumar, Vinod Bhatt, Onkar S. Nayal, Sushila Sharma, Vishal Kumar, Maheshwar S. Thakur, Neeraj Kumar, Rajaram Bal, Bikram Singh, Upendra Sharma Herein, copper iodide nanoparticles (NPs) are reported for the reductive amination of carbonyl compounds …

3-Phenylpropionic acid

3-Phenylpropionic acid (2z) 1 1) Jiang, X.; Zhang, J.; Ma. S. J. Am. Chem. Soc. 2016, 138, 8344 Yield: 94% (142 mg), white solid. Melting point: 47-49 °C (lit.18 49 °C) (18) Helavi, V. B.; Solabannavar, S. B.; Desai, U. V.; Mane, R. B. J. Chem. Research 2003, 3, 174. 1 H NMR …