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doi:10.1016/S0040-4039(00)83970-2 
Copyright © 1986 Published by Elsevier Science Ltd. All rights reserved.
Gerhard Bringmann, * and Stephan Schneider
Organisch-Chemisches Institut der Universität Orléansring 23, D-4400 Münster, F.R. Germany
Received 7 October 1985.
Abstract
A synthesis of pyridoxal is described, which avoids delicate redox reactions at the accomplished pyridoxyl system. This synthesis allows the facile preparation of highly (98%) deuterated pyridoxal 10b and of B6-derived alkaloids.
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This isomerization reaction may be rationalized by elimination and regiospecific readdition of ethanol
a reactive furo[3,4-c]pyridine.
