1421839-60-2Relevant academic research and scientific papers
Access to Amide from Aldimine via Aerobic Oxidative Carbene Catalysis and LiCl as Cooperative Lewis Acid
Wang, Guanjie,Fu, Zhenqian,Huang, Wei
, p. 3362 - 3365 (2017)
Herein, an efficient route to amides from aldimines via aza-Breslow intermediates through aerobic oxidative carbene catalysis with LiCl as a cooperative Lewis acid is described. Many of the obtained N-heteroarylamides feature biological activity. Ambient
An efficient solid-phase parallel synthesis of 2-amino and 2-amidobenzo[d]oxazole derivatives via cyclization reactions of 2-hydroxyphenylthiourea resin
Jung, Se-Lin,Kim, Seul-Gi,Lee, Gee-Hyung,Gong, Young-Dae
, p. 4109 - 4116 (2013/08/23)
An efficient solid-phase methodology has been developed for the synthesis of 2-amino and 2-amidobenzo[d]- oxazole derivatives. The key step in this procedure involves the preparation of polymer-bound 2-aminobenzo- [d]oxazole resins 4 by cyclization reaction of 2-hydroxyphenylthiourea resin 3. The resin-bound 2-hydroxyphenylthiourea 3 is produced by the addition of 2-aminophenol to the isothiocyanate-terminated resin 2 and serve as a key intermediate for the linker resin. This core skeleton 2-aminobenzo[d]oxazole resin 4 undergoes functionalization reaction with various electrophiles, such as alkylhalides and acid chlorides to generate 2- amino and 2-amidobenzo[d]oxazole resins 5 and 6 respectively. Finally, 2-amino and 2-amidobenzo[d]oxazole derivatives 7 and 8 are then generated in good yields and purities by cleavage of the respective resins 5 and 6 under trifluoroacetic acid (TFA) in dichloromethane (CH2Cl2).
