Journal of the Brazilian Chemical Society

p. 107-112 Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-01-20T13:44:45Z No. of bitstreams: 1 Silvio Cunha.pdf: 285803 bytes, checksum: 98f13e6c5b394c1025a4a7c3edbe11a5 (MD5) Made available in DSpace on 2014-01-20T13:44:45Z (GMT). No. of bitstreams: 1 Silvio Cunha.pdf: 285803 bytes, checksum: 98f13e6c5b394c1025a4a7c3edbe11a5 (MD5) Previous issue date: 2003 The reaction of acyclic enaminones with methoxymethylene Meldrum's acid afforded N-adduct and/or C-adduct of enaminones in moderate to good yields. The regiochemistry of this reaction depends on the N-amino substituent of the enaminone. The C-adduct is a precursor to 2-pyridones. X-ray analysis of two N-adducts were investigated and the Z-s-Z configuration assigned.