The new threading system 2-benzyl-5,6-dimethyl-1H-benzo[d]imidazolium – dibenzo-24-crown-8: a model for Monte Carlo calculations incorporating an anion for the first time in threaded structures
摘要:
本研究描述了一种新的[2]假紫杉烷,它含有一个二苯并-24-冠-8 (DB24C8) 大环的苯并咪唑氢键站。通过 1H NMR 光谱、二维 NOESY 和 Monte Carlo 方案(首次包括阴离子)确定了所形成的 [2]pseudorotaxane 的结构。
Synthesis of 2-(Arylmethyl)benzazoles by the Sulfur-mediated Cyclization of 2-Aminophenol or 2-Aminoaniline with Arylacetylenes
作者:P. P. Ma、H. L. Wu、H. F. Gan
DOI:10.1134/s1070428023080171
日期:2023.8
A General Approach to Substituted Benzimidazoles and Benzoxazoles
<i>via</i>
Heterogeneous Palladium‐Catalyzed Hydrogen‐Transfer with Primary Amines
作者:Marianna Pizzetti、Elisa De Luca、Elena Petricci、Andrea Porcheddu、Maurizio Taddei
DOI:10.1002/adsc.201200253
日期:2012.9.17
employed. Primaryamines are the most suitable reagents for the atom economy of the overall process that resulted to be general as several different substitutedbenzimidazoles were obtained in good yield. Benzoxazoles can be also prepared starting from primaryamines and o‐aminophenol. The reaction is also highly selective as no (poly)‐alkylated phenylenediamines or cross‐contaminated benzimidazoles are
The new threading system 2-benzyl-5,6-dimethyl-1H-benzo[d]imidazolium – dibenzo-24-crown-8: a model for Monte Carlo calculations incorporating an anion for the first time in threaded structures
A new [2]pseudorotaxane containing a benzimidazolium hydrogen-bonding station for a dibenzo-24-crown-8 (DB24C8) macrocycle is described. The structure of the [2]pseudorotaxane formed is established by 1H NMR spectroscopy, 2D NOESY and a Monte Carlo protocol (including an anion for the first time).
本研究描述了一种新的[2]假紫杉烷,它含有一个二苯并-24-冠-8 (DB24C8) 大环的苯并咪唑氢键站。通过 1H NMR 光谱、二维 NOESY 和 Monte Carlo 方案(首次包括阴离子)确定了所形成的 [2]pseudorotaxane 的结构。