caa a22 4500 467920435 CHVBK 20180406152915.0 cr unu---uuuuu 170328e20060201xx s 000 0 eng 10.1007/s00706-005-0408-6 doi (NATIONALLICENCE)springer-10.1007/s00706-005-0408-6 An Unexpected Reaction Between 6,7-Dimethoxy-2 H -1,3-benzothiazine and Dimethyl Acetylenedicarboxylate [Elektronische Daten] [Lajos Fodor, Gábor Bernáth, Pál Sohár, Diether Gröschl, Herbert Meier] Summary.: 6,7-Dimethoxy-2H-1,3-benzothiazine reacted with dimethyl acetylenedicarboxylate in aqueous methanol to give heterocycles with unexpected structures. A mechanism is proposed for the reaction. Springer-Verlag/Wien, 2005 Keywords. S,N-Heterocycles nationallicence Dimethyl acetylenedicarboxylate cycloadditions nationallicence 5,13-Dithiaxylopinine nationallicence Benzothiopyrane nationallicence Reaction mechanism nationallicence Fodor Lajos Research Group for Heterocyclic Chemistry of the Hungarian Academy of Sciences and the University of Szeged, 6720, Szeged, Hungary aut Bernáth Gábor Institute of Pharmaceutical Chemistry, University of Szeged, 6720, Szeged, Hungary aut Sohár Pál Research Group for Structural Chemistry and Spectroscopy, Hungarian Academy of Sciences - Department of General and Inorganic Chemistry, Eötvös Loránd University, 1518, Budapest, Hungary aut Gröschl Diether Institute of Organic Chemistry, University of Mainz, 55099, Mainz, Germany aut Meier Herbert Institute of Organic Chemistry, University of Mainz, 55099, Mainz, Germany aut Monatshefte für Chemie / Chemical Monthly Springer-Verlag 137/2(2006-02-01), 231-234 0026-9247 137:2<231 2006 137 706 https://doi.org/10.1007/s00706-005-0408-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00706-005-0408-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fodor Lajos Research Group for Heterocyclic Chemistry of the Hungarian Academy of Sciences and the University of Szeged, 6720, Szeged, Hungary aut NATIONALLICENCE 700 1- Bernáth Gábor Institute of Pharmaceutical Chemistry, University of Szeged, 6720, Szeged, Hungary aut NATIONALLICENCE 700 1- Sohár Pál Research Group for Structural Chemistry and Spectroscopy, Hungarian Academy of Sciences - Department of General and Inorganic Chemistry, Eötvös Loránd University, 1518, Budapest, Hungary aut NATIONALLICENCE 700 1- Gröschl Diether Institute of Organic Chemistry, University of Mainz, 55099, Mainz, Germany aut NATIONALLICENCE 700 1- Meier Herbert Institute of Organic Chemistry, University of Mainz, 55099, Mainz, Germany aut NATIONALLICENCE 773 0- Monatshefte für Chemie / Chemical Monthly Springer-Verlag 137/2(2006-02-01), 231-234 0026-9247 137:2<231 2006 137 706 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer