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Behaviour of 4-(4-chlorophenyl)-6-(4-tolyl)-4,5-dihydro pyrimidine-2(1H) thione and 2-hydrazino derivative toward carbon electrophiles

✍ Scribed by M.A. El-Hashash; A.F. El-Kafrawy; S.A. Shiba

Book ID
112058983
Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
222 KB
Volume
9
Category
Article
ISSN
0256-7660

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✍ Sridhar, B. ;Ravikumar, K. ;Sadanandam, Y. S. 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 140 KB

The asymmetric unit of the title compound, C 16 H 19 Cl 2 N 3 OS, contains two crystallographically independent molecules, which have almost identical conformations. The dihydropyrimidine ring adopts a boat conformation in both molecules. N-HÁ Á ÁO and N-HÁ Á ÁS hydrogen bonds stabilize the crystal

1,4-Dihydro-6-methyl-5-(N-methyl­carbamo
1,4-Dihydro-6-methyl-5-(N-methyl­carbamo­yl)-4-(4-nitro­phen­yl)pyrimidine-2(3H)-thione monohydrate
✍ Sridhar, Balasubramanian ;Ravikumar, Krishnan 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 127 KB

The title compound, C 13 H 14 N 4 O 3 SÁH 2 O, is an isomer of 1,4dihydro-6-methyl-5-(N-methylcarbamoyl)-4-(2-nitrophenyl)pyrimidine-2(3H)-thione. The nitro group is coplanar with the benzene ring to which it is attached. Intermolecular hydrogen bonds stabilize the crystal structure.