I<sub>2</sub>-Mediated Oxidative C–N and N–S Bond Formation in Water: A Metal-Free Synthesis of 4,5-Disubstituted/N-Fused 3-Amino-1,2,4-triazoles and 3-Substituted 5-Amino-1,2,4-thiadiazoles
作者:Nagesh Jatangi、Nagaraju Tumula、Radha Krishna Palakodety、Mangarao Nakka
DOI:10.1021/acs.joc.8b00753
日期:2018.5.18
environmentally benign and convenient strategy for the synthesis of 4,5-disubstituted/N-fused 3-amino-1,2,4-triazoles and 3-substituted 5-amino-1,2,4-thiadiazoles from isothiocyanates has been developed. This metal-free method involves I2-mediated oxidative C–N and N–S bond formations in water. Furthermore, this facile protocol exhibited excellent substrate tolerance in good to high yields and scalable fashion
从异硫氰酸酯合成4,5-二取代/ N稠合的3-氨基-1,2,4-三唑和3-取代的5-氨基-1,2,4-噻二唑的环境友好,方便的策略已得到开发。 。这种无金属方法涉及水中I 2介导的氧化性C–N和N–S键的形成。此外,这种简便的方案以良好的高产量和可扩展的方式表现出出色的基材耐受性。