Synthesis and Crystal Structure of 7,7- Dimethyl-2-amino-3-cyano-4-(3,4-methylenedioxylphenyl)-5-oxo-5,6,7,8-tetrahydro-

The title compound 7,7-dimethyl-2-amino-3-cyano-4-(3,4-methylene- dioxylphenyl)-5-oxo-5,6,7,8-tetrahydro-4H-benzo-[b]-pyran(C19H18N2O4, Mr=338.35) is mono- clinic, space group C2/c with a=26.753(5), b=9.409(2), c=16.036(3)A,β=121.00(1)°, Z=8, V=3460(1)A3, Dc=1.299g/cm3, μ(MoKα=0.092mm-1, F(000)=1424, R=0.0410 and wR=0.0926 for 3138 observed reflections (I>2σ(I)). X-ray analysis reveals that atoms C(8), C(9), C(10), O(3), C(12) and C(13) form a six-membered ring in which the distances of C(9)-C(10) and C(12)-C(13) are 1.342(2) and 1.331(2)A, respectively, which show that they are C=C double bonds. In addition, there is hydrogen bond in the product molecule.

作 者： 王香善 史達(dá)清 屠樹江 姚昌盛 王玉成   作者單位： Department of Chemistry, Xuzhou Normal University, Xuzhou 221009,China  刊 名： 結(jié)構(gòu)化學(xué)  ISTIC SCI PKU 英文刊名： CHINESE JOURNAL OF STRUCTURAL CHEMISTRY  年，卷(期)： 2002 21(2)  分類號： O64  關(guān)鍵詞： crystal structure   benzo-[b]-pyran   synthesis  

【Synthesis and Crystal Structure of 7】相關(guān)文章：

Synthesis and Crystal Structure of a Tetranuclear Cu(Ⅰ) Complex with Vinyfidenebis(diphenylphosphine)04-27

Synthesis and Crystal Structure of Binuclear Copper(Ⅱ)Complex Containing (Dimethylaminomethyl)ferrocene04-27

Synthesis, Crystal Structure, and Magnetic Properties of a Quasi-one-dimensional Compound Based on TCNQ04-27

Synthesis and Crystal Structure of 1,4-Bis(2-hydroxymethylphenyl)-1,4-dioxabutane04-27

Synthesis, Crystal Structure and DNA Interaction of N-(Benzimidazol-2-ylmethyl)-5-chlorosalicylideneimine04-27

Synthesis and Crystal Structure of 7-Ethoxycarbonyl-2-methyl-6-methylthio-lH-imidazo[1,2-b]pyrazole04-27

Synthesis and Crystal Structure of 4-Salicyli- deneamino-3-methyl-1,2,4-triazol-5-thione04-28

Synthesis, Structure and Properties of Poly(arylene imino)s04-28

Synthesis and Crystal Structure of N,N-Diphenyl-3,6-diethyl-1,4-dihydro-s-tetrazine-1,4-dicarbonamide04-26

Synthesis and Crystal Structures of the α and β Forms of Bis(salicylaldoxime)copper(Ⅱ) Complexes04-29