Z. Naturforsch. 54 b, 1175-1180 (1999); received June 9, 1999 Copper(I) Halides, Pyridazine, Pyrimidine, Coordination Polymers 1-Dimensional coordination polymers J. [CuX(/i-pydz)] 1 3 (X = Cl, Br, I; pydz = pyrid­ azine) may be prepared by self-assembly in acetonitrile solution at 120 °C (1) or room temper­ ature (2, 3). Individual chains contain (CuX)2 rings and dimeric [Cu(^-pydz) ] 2 substr...

Chlorprom azine M. Gel fun d ................................. 216 Volvulus o f the Stom ach W. Shepherd Wilson 218 B lackw ater F ever in an A frican Child / / . F. T h eron ........................... 220 Africa, B u t N ot So Dark W. R obertson ........................... 221 C hem otherapy in Pulm onary Tuberculosis A. I. L. Turnbull 228 Pulm onary H aem osiderosis J. R. H arries .............

The chiral title compound, C(21)H(20)N(4)O(2), crystallizes as a racemic mixture. In the crystal, mol-ecules form centrosymmetric π-overlapping dimers [inter-planar distance = 3.338 (6) Å], which are further connected along the a axis forming centrosymmetric dimers via O-H⋯N hydrogen bonds. C-H⋯O inter-actions are also observed. The indolo[2,1-b]quinazoline group is somewhat bent, with a small ...

Condensation of 3-acetyl-8-ethoxycoumarin (3) with thiosemicarbazide gave ethylidenehydrazinecarbothioamide 5, which was transformed into the thiazolidin-4-one derivatives 6,7. Interaction of 3 with DMF/POCl(3) gave b-chloroacroline derivative 8. Treatment of 3 with malononitrile gave benzo[c]chromone and 2-aminobenzonitrile derivatives 9 and 10, respectively with respect to the reaction condit...