Nitromethyl benzoate annulation reactions: a rapid construction of the stealthin skeleton
摘要:
The annulation of 2-(nitromethyl)benzoates with enones gave 4-nitro-1-naphthols in good yields. The carbocyclic framework of the stealthins was synthesized. (C) 2012 Elsevier Ltd. All rights reserved.
Herein we describe an efficient synthetic route to an advanced indane intermediate in fourstepsfrom 4-hydroxy-6-methyl-1-indanone which itself is synthesized from -cresol in fivesteps. This constitutes formal total synthesis of all three natural products (±)-Puraquinonic Acid, (±)-Deliquinone, and (±)-Russujaponol. The operationally simple synthesis employs reactions involving methylation of phenolic