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A concise and divergent approach to radicamine B and hyacinthacine A3 based on a step-economic transformation

✍ Scribed by Jin-Cheng Liao; Kai-Jiong Xiao; Xiao Zheng; Pei-Qiang Huang

Book ID: 116909406
Publisher: Elsevier Science
Year: 2012
Tongue: French
Weight: 695 KB
Volume: 68
Category: Article
ISSN: 0040-4020
DOI: 10.1016/j.tet.2012.01.085

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## Abstract A simple one‐step synthesis of 2‐amino‐4‐aryl‐5‐oxo‐4__H__‐furo[3,4‐__b__]pyran‐3‐carbonitriles 7 is described. It involves reaction of 2,4(3__H__,5__H__)‐furandione (β‐tetronic acid) (5) with arylmethylenemalononitriles 4 in basic medium. Some substituent effects are noted and the assi