Rh(III)-Catalyzed Imidoyl C–H Carbamylation and Cyclization to Bicyclic [1,3,5]Triazinones
作者:Danielle N. Confair、Nathaniel S. Greenwood、Brandon Q. Mercado、Jonathan A. Ellman
DOI:10.1021/acs.orglett.0c03393
日期:2020.11.20
[1,3,5]triazinones from a diverse array of imines coupled with ethyl (pivaloyloxy)carbamate is reported. The preparation of [5,6]- and [6,6]-bicyclic heterocycles substituted with aryl, alkyl, and alkoxy groups demonstrated a broad reaction scope. The efficiency of this approach was further enhanced with the development of a three-component variant featuring in situ imineformation. X-ray crystallographic
报道了从各种亚胺与(新戊酰氧基)氨基甲酸乙酯偶联的 Rh(III) 催化合成双环 [1,3,5] 三嗪酮。[5,6]-和[6,6]-被芳基、烷基和烷氧基取代的双环杂环的制备证明了广泛的反应范围。随着以原位亚胺形成为特征的三组分变体的开发,这种方法的效率得到进一步提高。通过亚胺酰基 C-H 活化形成的红环的 X 射线晶体学表征为所提出的机制提供了支持。
Investigation of the electronic spectra of furfuryl- and 2-thienyl-imino derivatives of some heterocycles: molecular orbital treatment
作者:Maher M. Hamed
DOI:10.1039/ft9938900671
日期:——
The electronic absorption spectra of furylmethylene and thienylmethylene derivatives of 2-aminopyridine, 2-aminopyrimidine and aminopyrazine have been investigated and INDO/S-CI molecular orbital calculations have been performed. The results predicted the position of n–π* transitions which were not observed experimentally. The coefficients of the CI wavefunction were used to predict the type of electronic transitions under consideration. It was confirmed that the anti conformer is the predominant one for the compounds studied.
研究了2-氨基吡啶、2-氨基嘧啶和氨基吡嗪的呋喃亚甲基和噻吩亚甲基衍生物的电子吸收光谱,并进行了INDO/S-CI分子轨道计算。结果预测了实验中未观察到的 n-π* 跃迁的位置。 CI 波函数的系数用于预测所考虑的电子跃迁类型。已证实反构象异构体是所研究化合物的主要构象异构体。
Histamine Antagonists. VI. Pyrrolidylethylamine Derivatives
作者:Edward H. Lincoln、R. V. Heinzelmann、James H. Hunter
DOI:10.1021/ja01176a095
日期:1949.8
Kaye; Kogon, Recueil des Travaux Chimiques des Pays-Bas, 1952, vol. 71, p. 309,314
作者:Kaye、Kogon
DOI:——
日期:——
N,N-Dimethyl-N'-benzohydryl-N'-(2-pyridyl)-ethylenediamine and Related Compounds as Histamine Antagonists
作者:Irving Allan Kaye、Irving C. Kogon、Chester L. Parris