Gas-phase pyrolysis of benzo-and naphthofuran derivatives
YA Ibrahim, AS Mohamed, OM Habib… - Journal of Analytical and …, 2019 - Elsevier
YA Ibrahim, AS Mohamed, OM Habib, FH Al-Awadhi, NA Al-Jalal, NA Al-Awadi
Journal of Analytical and Applied Pyrolysis, 2019•ElsevierAbstract Benzo-and naphthofuran carboxylates 1, 2 and carboxamides 3, 4 were
synthesized and pyrolysed by flash vacuum pyrolysis at 550 and 650° C/10− 2 mmHg. 2-
Formylbenzonitrile 7 from benzofurans and 2-formylnaphthonitrile 14 from naphthofurans
were isolated and identified as major products. The mechanism suggested for these
pyrolytic reactions involves elimination of alcohol and amine from carboxylates 1, 2 and
carboxamides 3, 4 respectively, followed by extrusion of CO to form phenoxy and …
synthesized and pyrolysed by flash vacuum pyrolysis at 550 and 650° C/10− 2 mmHg. 2-
Formylbenzonitrile 7 from benzofurans and 2-formylnaphthonitrile 14 from naphthofurans
were isolated and identified as major products. The mechanism suggested for these
pyrolytic reactions involves elimination of alcohol and amine from carboxylates 1, 2 and
carboxamides 3, 4 respectively, followed by extrusion of CO to form phenoxy and …
Abstract
Benzo- and naphthofuran carboxylates 1, 2 and carboxamides 3, 4 were synthesized and pyrolysed by flash vacuum pyrolysis at 550 and 650 °C/10−2 mmHg. 2-Formylbenzonitrile 7 from benzofurans and 2-formylnaphthonitrile 14 from naphthofurans were isolated and identified as major products. The mechanism suggested for these pyrolytic reactions involves elimination of alcohol and amine from carboxylates 1, 2 and carboxamides 3, 4 respectively, followed by extrusion of CO to form phenoxy and naphthoxycarbenes that leads to 7 and 14 respectively.
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