Flow synthesis of tricyclic spiropiperidines as building blocks for the histrionicotoxin family of alkaloids
摘要:
A domino cyclization reaction of the bis-unsaturated ketone 3 with hydroxylamine proceeds with good yield and high stereoselectivity, in a flow reactor system. The tricyclic spiropiperidine products 5 and 2 obtained are valuable building blocks for the synthesis of analogues of the histrionicotoxin alkaloids. (C) 2010 Elsevier Ltd. All rights reserved.
Flow synthesis of tricyclic spiropiperidines as building blocks for the histrionicotoxin family of alkaloids
摘要:
A domino cyclization reaction of the bis-unsaturated ketone 3 with hydroxylamine proceeds with good yield and high stereoselectivity, in a flow reactor system. The tricyclic spiropiperidine products 5 and 2 obtained are valuable building blocks for the synthesis of analogues of the histrionicotoxin alkaloids. (C) 2010 Elsevier Ltd. All rights reserved.