- Synthesis of New 3-(Furan-2-yl)-Substituted Dibenzo-Diazepin-1-one Derivatives
-
A new series of 3-(furan-2-yl) dibenzo-diazepin-1-one derivatives were synthesized by condensation of 5-(furan-2-yl)-1,3-cyclohexanedione, o-phenylenediamine, and aromatic aldehydes, in which in some of them existed two very close isomer compounds. All the compounds were characterized by IR, MS,1H NMR, and elemental analysis. Also presented were the crystal structures of 3a, 3b and 3e, which were obtained and determined by X-ray single-crystal diffraction.
- Wang, Fang-Ming,Bao, Dan,Wang, Ming,Yin, Qing-Huan,Chen, Li-Zhuang,Han, Guang-Fan
-
-
Read Online
- Synthesis and crystal structure of 4,7-diaryl-5-oxo-4H-benzo[b]pyran derivatives
-
A green and convenient approach to the synthesis of a series of 4,7-diaryl-5-oxo-4H-benzo[b]pyran derivatives from appropriate aromatic aldehydes and 5-aryl-1,3-cyclohexanedione with malononitrile in the presence of dilute HCl as catalyst (30 mmol/L) is described. This method provides several advantages such as environmental friendliness, low cost, high yields, and simple work up procedure. The structures of all compounds were characterized by infrared (IR), mass spectrometry (MS), 1H NMR, and elemental analysis. The crystal structure of trans/cis-2-amino-3-cyano-7-(4'-methoxo- phenyl)-4-phenyl-5-oxo-4H-benzo[b]pyran, g, was determined by single crystal X-ray diffraction analysis. The crystal of compound g belongs to monoclinic with space group P 21/c, a = 8.477(3) nm, b = 18.948(6) nm, c = 24.915(7) nm, α = 90.00°, β = 107.388(11)°, γ= 90.00°, Z = 8, V = 3.819(2) nm3, R1 = 0.0754, wR2 = 0.2042.
- Cui, Bin,Chen, Li-Zhuang,Hu, Xiao-Lei,Wang, Ming,Han, Guang-Fan
-
p. 900 - 904
(2012/10/29)
-
- PROCESS FOR THE PRODUCTION OF OPTICALLY ACTIVE CYCLIC ENAMINONE DERIVATIVES
-
A process for the production of optically active cyclic enaminone derivatives characterized by aminating one of the carbonyl groups of a cyclic 1,3-diketone derivative having a symmetry plane to obtain an optically isomeric mixture of chiral cyclic enamin
- -
-
-