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引用次数: 0
摘要
测定了化合物二甲基2,7-二甲基吡咯[1,2-b]吡啶-5,6-二羧酸酯的x射线结构，以确定其新型6,5-双环体系的分子几何形状和构象。化合物在P21/n空间群中结晶，a = 7.9910(2) a, b = 13.4005(3) a, c = 11.7950(3) a， β = 90.213(1)°，Z = 4。折环分析表明，该六元环的扭角为34.5(2)°，为螺旋船形。
X-ray Structure of a 3,4-Dihydropyrrolo[1,2-b]pyridazine Derivative
The X-ray structure of the compound dimethyl 2,7-dimethyl-pyrrolo[1,2-b]pyridazine-5,6-dicarboxylate was determined to establish the molecular geometry and conformation of its novel 6,5-bicyclic system. The compound crystallizes in the space group P21/n with a = 7.9910(2)A, b = 13.4005(3)A, c = 11.7950(3)A, β = 90.213(1)°, and Z = 4. A puckering analysis indicated a screw-boat conformation for the six-membered ring with the torsion angle C2-C3-C4-C5 having a magnitude of 34.5(2)°.
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