STRUCTURAL STUDY OF 5-METHOXYFURO[3,2-E]IMIDAZO[1,2-C]PYRIMIDINE

被引：1

作者：

QUIJANO, ML

NOGUERAS, M

SANCHEZ, A

MELGAREJO, M

LOPEZ, R

JIMENO, ML

LOW, JN

HOWIE, RA

FERGUSON, G

机构：

[1] FAC FARM GRANADA,DEPT QUIM ORGAN,E-18071 GRANADA,SPAIN

[2] CTR NACL QUIM ORGAN,E-28006 MADRID,SPAIN

[3] UNIV DUNDEE,DEPT APPL PHYS ELECTR & MFG ENGN,DUNDEE DD1 4HN,SCOTLAND

[4] UNIV ABERDEEN,DEPT CHEM,ABERDEEN AB9 2UE,SCOTLAND

[5] UNIV GUELPH,DEPT CHEM,GUELPH,ON N1G 2W1,CANADA

来源：

JOURNAL OF HETEROCYCLIC CHEMISTRY | 1994年 / 31卷 / 06期

关键词：

D O I：

10.1002/jhet.5570310651

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The nmr and X-ray diffraction data of the novel ring system furo[3,2-e]imidazo[1,2-c]pyrimidine are reported in this paper. The crystal and molecular structure of this compound (C9H7N3O2.1/2H2O) has been solved at room temperature. Crystals are monoclinic in a space group of P2/n with cell constants a = 9.982(8), b = 13.526(9) and c = 13.981(9) angstrom, beta = 107.44(5)-degrees, V = 1800.9 angstrom3, Z = 8, D(x) = 1.462 Mg.m-3. The structure was solved by full matrix least square refinement giving a final R = 0.054 (Rw = 0.069) for 1263 reflections (I>3.0sigma(I)). The compound is essentially planar, existing in two slightly structural different forms, A and B. These are held in pairs with symmetry related molecules by hydrogen bonds formed with two water molecules. Then the dimeric units are stacked parallel to the c axis to form the tridimensional packing.

引用

页码：1583 / 1588

页数：6

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