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ChemInform Abstract: An Efficient Synthesis of 3-Alkyl-1,5,3-dioxazepanes and Their Use as Electrophiles in Double-Mannich Reactions.

✍ Scribed by Kevin Sparrow; David Barker; Margaret A. Brimble

Book ID: 112046027
Publisher: John Wiley and Sons
Year: 2012
Weight: 42 KB
Volume: 43
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.201226194

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Efficient Synthesis of the Azabicyclo[3.3.1]nonane Ring System in the Alkaloid Methyllycaconitine Using Bis(alkoxymethyl)alkylamines as Aminoalkylating Agents in a Double Mannich Reaction

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## Abstract The double Mannich reaction of cyclic β‐keto esters with bis(alkoxymethyl)alkylamines provides an efficient and versatile method for the construction of azabicyclo[3.3.1]nonanes and azabicyclo[3.2.1]octanes. The optimum conditions for efficient reaction involve use of the activator tric