微波辐射下2-氨基-7,7-二甲基-3-乙氧羰基-4-(2-呋喃)基-5-氧代-5,6,7,8-四氢-4H-苯并吡喃的合成和晶体结构

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标题化合物C18H21NO5是由2-呋喃亚甲叉氰乙酸酯和5,5-二甲基-1,3-环己酮在醋酸铵存在下用微波辐射反应得到,结构通过单晶X-射线衍射法确定,其晶体属三斜晶系,空间群P 睿琈r =332.36,a =11.232(2),b =13.048(2),c =13.274(3),α=105.7(1),β=95.68(2),g =109.56(1)? V=1752.4(6)3,Z=2,Dc=1.276Mg·m-1, =0.093mm-1,F(000)=704, 最终的偏离因子为R=0.0431,wR=0.0973,在分子结构中平面 1 (呋喃环) 与平面2 ((C(5)、 C(6)、C(9)、O(1))之间的二面角为 84.70°, 平面2 与平面 3 (C(1)、C(4)、C(5)、C(6)) 之间的二面角为 2.9°, 平面 1 与平面3 之间的二面角为 85.9°。吡喃环和与吡喃环合的六员环为信封式结构。 The title compound C18H21NO5 was obtained from microwave irradiation of 2-furfurylideneacetate and 5,5-dimethyl-1,3-cyclohexanone in the presence of ammonium acetate by single crystal X-ray diffraction (3), α = 105.7 (1), β = (2), and a = 11.273 (2) 95.68 (2), g = 109.56 (1)? V = 1752.4 (6) 3, Z = 2, Dc = 1.276 Mg · m -1, = 0.093 mm -1, F (000) = 704 and the final deviation factor The dihedral angle between the plane 1 (furan ring) and the plane 2 ((C (5), C (6), C (9), O (1)) in the molecular structure for R = 0.0431 and wR = Is 84.70 ° and the dihedral angle between the plane 2 and the plane 3 (C (1), C (4), C (5), C (6)) is 2.9 ° and both sides between the plane 1 and the plane 3 The angle is 85.9 ° The pyran ring and the six-membered ring that is ring-bonded to the pyran are in an envelope structure.
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