1609566-46-2Relevant academic research and scientific papers
Highly selective direct azidation of alcohols over a heterogeneous povidone-phosphotungstic solid acid catalyst
Kamble, Sumit,More, Sagar,Rode, Chandrashekhar
, p. 10240 - 10245 (2016/12/06)
A simple protocol for the selective azidation of alcohols is developed using a solid acid hybrid of a povidone and phosphotungstic acid (PVP-PWA) using azidotrimethylsilane as an azide source at room temperature. In a broad substrate scope, various activated as well as unactivated benzylic and diphenyl alcohols were treated smoothly with TMS-N3 to selectively produce only azide products with excellent yields in a very short reaction time of 2 h. FT-IR confirmed the stability of the catalyst with retention of the Keggins structure after the reaction. Recycling experiments demonstrated the reusability of the PVP-PWA (3?:?1) several times without losing its original activity.
Copper triflate: An efficient catalyst for direct conversion of secondary alcohols into azides
Khedar, Poonam,Pericherla, Kasiviswanadharaju,Kumar, Anil
supporting information, p. 515 - 518 (2014/03/21)
A simple, practical, and efficient strategy has been demonstrated for the direct synthesis of organic azides from alcohols using azidotrimethylsilane (TMSN3) as azide source in the presence of copper(II) triflate [Cu(OTf)2]. A variet
