title: A novel three-component one-pot reaction involving alkynes, urea or thiourea, and aldehydes.
abstract: A novel three-component, one-pot condensation yielding 2-amino-4H-1,3-oxazines or 2-amino-4H-1,3-thiazines from alkynes, urea or thiourea, and aldehydes is described. [reaction: see text]
authors.affiliation: Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China.
authors.forename: Shenlin
authors.initials: S
authors.lastname: Huang
authors.forename: Yuanjiang
authors.initials: Y
authors.lastname: Pan
authors.forename: Yulin
authors.initials: Y
authors.lastname: Zhu
authors.forename: Anxin
authors.initials: A
authors.lastname: Wu
mesh_terms: D000447:Aldehydes / Q000737:chemistry*; D000480:Alkynes / Q000737:chemistry*; D002384:Catalysis; D015394:Molecular Structure; D010078:Oxazines / Q000138:chemical synthesis*; D013843:Thiazines / Q000138:chemical synthesis*; D013890:Thiourea / Q000737:chemistry; D014508:Urea / Q000737:chemistry*
chemical_list: D000447:Aldehydes; D000480:Alkynes; D010078:Oxazines; D013843:Thiazines; D014508:Urea; D013890:Thiourea