88121-67-9Relevant academic research and scientific papers
Diazo- And transition-metal-free C-H insertion: A direct synthesis of β-lactams
Gomes, Luis F. R.,Veiros, Ls F.,Maulide, Nuno,Afonso, Carlos A. M.
, p. 1449 - 1453 (2015/01/30)
Carbene intermediates are very useful species for a range of reactions including C-H insertions and cycloadditions. They are most commonly generated by metal-catalyzed release of nitrogen gas from diazo precursors. Herein, we present a novel C-H insertion
ELECTROCHEMICAL STUDIES ON Β-LACTAMS. PART 4. ELECTROACETYLATION OF Β-LACTAMS.
Casadei, Maria Antonietta,Inesi, Achille,Moracci, Franco Micheletti,Occhialini, Donatella
, p. 6885 - 6890 (2007/10/02)
Electroreduction of 3-bromo- and 3,3-dichloro-β-lactams 1 carried out at the potential of the first voltammetric peak and in the presence of acetic anhydride gives 3-acetyl-β-lactams 2.The electrosynthesis is highly stereoselective, as only the acetyl der
1,3-Oxazines and Related Compounds. XIV. Facile Synthesis of 2,3,6-Trisubstituted 2,3-Dihydro-1,3-oxazine-5-carboxilyc Acids and 1,4-Disubstituted 3-Acyl-β-lactams from Acyl Meldrum's Acids and Schiff Bases
Yamamoto, Yutaka,Watanabe, Yokiyoshi
, p. 1871 - 1879 (2007/10/02)
Simple preparation of 2,3,6trisubstituted 2,3-dihydro-1,3-oxazine-5-carboxylic acids (4) and 1,4-disubstituted 3-acyl-β-lactams (5) from acyl Meldrum's acids and Schiff bases were carried out.2,3-Disubstituted 5-acyl-3,4,5,6-tetrahydro-2H-1,3-oxazine-4,6-
Reaction of 2,2,6-trimethyl-1,3-dioxin-4-one with Imines
Masayuki, Sato,Ogasawara, Hiromichi,Yoshizumi, Eriko,Kato, Tetsuzo
, p. 1902 - 1909 (2007/10/02)
The reaction of 2,2,6-trimethyl-1,3-dioxin-4-one (diketene-acetone adduct) (1) with imines was investigated.Heating of the adduct 1 with N-(1-phenylethylidene)aniline (6a) gave 6-methyl-1,2-diphenyl-4(1H)-pyridone 7a.Similar treatment of N-benzylideneanil
