iEDDA Reaction of the Molecular Iodine-Catalyzed Synthesis of 1,3,5-Triazines via Functionalization of the sp<sup>3</sup> C–H Bond of Acetophenones with Amidines: An Experimental Investigation and DFT Study
作者:Abhishek R. Tiwari、Shilpa R. Nath、Kaustubh A. Joshi、Bhalchandra M. Bhanage
DOI:10.1021/acs.joc.7b02313
日期:2017.12.15
Diels–Alder (iEDDA)-type reaction to synthesize 1,3,5-trizines from acetophenones and amidines. The use of molecular iodine in a catalytic amount facilitates the functionalization of the sp3 C–H bond of acetophenones. This is a simple and efficient methodology for the synthesis of 1,3,5-triazines in good to excellent yields under transition-metal-free and peroxide-free conditions. The reaction is believed to
1,3,5-Triazines were obtained via Cu(OAc)2 catalyzed reaction of benzamidine hydrochlorides and alcohols in air.
1,3,5-三嗪通过在空气中使用Cu(OAc)2催化苯甲酰胺盐酸盐和醇的反应获得。
Polythene glycol (PEG) as a reusable solvent system for the synthesis of 1,3,5-triazines via aerobic oxidative tandem cyclization of benzylamines and N-substituted benzylamines with amidines under transition metal-free conditions
作者:Abhishek R. Tiwari、Bhalchandra M. Bhanage
DOI:10.1039/c5gc01884f
日期:——
A green and highly efficient protocol for the syntheis of 1,3,5-triazines from benzylamines and N-substitutedbenzylamines amidines in PEG-600 has been developed firstly. This protocol is transition-metal free, phosphine ligand...
NIS-catalyzed oxidative cyclization of alcohols with amidines: a simple and efficient transition-metal free method for the synthesis of 1,3,5-triazines
作者:Abhishek R. Tiwari、Akash T.、Bhalchandra M. Bhanage
DOI:10.1039/c5ob01835h
日期:——
An efficient method for the synthesis of 1,3,5-triazines by NIS-catalyzed oxidative cyclization of alcohols with amidines has been developed. The reaction works smoothly under transition-metal free and phosphine-free conditions to afford a wide range of 1,3,5-triazine derivatives in moderate to good yields. The synthetic methodology was achieved via in situ oxidation of alcohols to aldehydes.