A Synthetic and Structural Study of Arylselenoamides and 2,4-Diaryl-1,3- Selenazoles
作者:J. Woollins、Guoxiong Hua、Junyi Du、Alexandra Slawin
DOI:10.1055/s-0034-1378525
日期:——
The systematic preparation of 2,4-diaryl-1,3-selenazoles was carried out by two-component cyclization of the primary selenoamides with α-halo ketones. Selenoamides were obtained from the reaction of Woollins’ reagent with arylnitrile, followed by hydrolysis with water. Three selenoamides have close structural similarities along with intermolecular interactions such as the strong N–H···O hydrogen bonding
2,4-二芳基-1,3-硒唑的系统制备是通过伯硒酰胺与α-卤代酮的双组分环化来进行的。硒酰胺是由伍林斯试剂与芳基腈反应,然后用水水解得到的。三种硒酰胺具有密切的结构相似性以及分子间相互作用,如强 N–H…O 氢键、弱 N–H…Se、C–H…O/N/Se 分子间相互作用和 π– π 堆积相互作用;同时,10个2,4-二芳基-1,3-硒唑中新形成的五元N-C-Se-C-C环具有平面或近平面构象以及弱C-H…O /N/Se/Br/Cl 分子间相互作用和 π-π 堆积相互作用。此外,