Synthesis of 2-amino-3-cyano-4H-chromen-4-ylphosphonates and 2-amino-4H-chromenes catalyzed by tetramethylguanidine.
In: Tetrahedron, Jg. 69 (2013-12-09), Heft 49, S. 10544-10551
Online
academicJournal
Zugriff:
Abstract: Synthesis of 2-amino-4H-chromen-4-ylphosphonates and 2-amino-4H-chromenes has been accomplished by the reaction of salicylaldehyde, malononitrile, dialkyl/diphenylphosphites catalyzed by 1,1,3,3-tetramethylguanidine (TMG) under neat conditions at room temperature. The applicability of catalytic TMG for the synthesis of 2-amino-4H-chromenes also has been described. The mild reaction conditions, simple work-up procedure, and use of TMG as an inexpensive catalyst provides an economical protocol for the preparation of important phosphorus-containing compounds. [Copyright &y& Elsevier]
Titel: |
Synthesis of 2-amino-3-cyano-4H-chromen-4-ylphosphonates and 2-amino-4H-chromenes catalyzed by tetramethylguanidine.
|
---|---|
Autor/in / Beteiligte Person: | Kalla, Reddi Mohan Naidu ; Byeon, Seong Jin ; Heo, Min Seon ; Kim, Il |
Link: | |
Zeitschrift: | Tetrahedron, Jg. 69 (2013-12-09), Heft 49, S. 10544-10551 |
Veröffentlichung: | 2013 |
Medientyp: | academicJournal |
ISSN: | 0040-4020 (print) |
DOI: | 10.1016/j.tet.2013.10.052 |
Schlagwort: |
|
Sonstiges: |
|