CuI Supported on Protonated Trititanate Nanotubes: A Reusable Catalyst for the One‐Pot Synthesis of Propargylamines via A3‐Coupling

• Published in: Asian journal of organic chemistry Vol. 6; no. 6; pp. 712 - 719
• Main Authors: Reddy, Bhoomireddy Rajendra Prasad, Reddy, Peddiahgari Vasu Govardhana, Shankar, Muthukonda V., Reddy, Bijivemula N.
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01-06-2017
• Subjects: A3 coupling; Acetylene; Adsorption; Catalysts; Catalytic activity; Chemical synthesis; copper; Coupling; Desorption; Nanotubes; Organic chemistry; propargylamines; supported catalysts; X-ray diffraction
• ISSN: 2193-5807; 2193-5815
• DOI: 10.1002/ajoc.201600623

CuI catalysts supported on protonated trititanate nanotubes (CuI/HTNT) were prepared and used as catalysts for the synthesis of propargylamines via A3 (aldehyde, amine and acetylene) coupling under solvent‐free conditions. The results revealed that the CuI/HTNT with 5 wt % CuI had the best catalytic activity. The protocol provides access to a wide range of propargylamines in excellent yields (up to 98 %). The prepared catalysts were characterized by TEM, XRD, N2‐adsorption desorption, EDS and ICP‐MS analysis. The catalyst can be recovered by centrifugation and reused in further catalytic reactions, its activity remaining largely unchanged for five successive runs.
Support your (A3) team! CuI catalysts supported on protonated trititanate nanotubes (CuI/HTNT) were prepared and used as novel catalysts for the synthesis of propargylamines via A3‐coupling under solvent‐free conditions. CuI on trititanate #nanotubes: a reusable catalyst for the synthesis of #propargylamines