[4 + 2]‐Cycloadditionen von α,β‐ungesättigten Hydrazonen. Teil 1. Pyridin‐2,3‐dicarboximide aus 1‐(Dimethylamino)‐1,4‐dihydropyridin‐Derivaten | Zendy

Waldner Adrian | Zendy

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[4 + 2]‐Cycloadditionen von α,β‐ungesättigten Hydrazonen. Teil 1. Pyridin‐2,3‐dicarboximide aus 1‐(Dimethylamino)‐1,4‐dihydropyridin‐Derivaten

Author(s) -

Waldner Adrian

Publication year - 1988

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.19880710222

Subject(s) - chemistry , pyridine , cycloaddition , dihydropyridine , medicinal chemistry , yield (engineering) , bicyclic molecule , stereochemistry , organic chemistry , catalysis , materials science , metallurgy , calcium

[4 + 2] Cycloadditions of α,β‐Unsaturated Hydrazones to Pyridine‐2,3‐dicarboximides via 1‐(Dimethylamino)‐1,4‐dihydropyridine Derivatives The [4 + 2] Cycloaddition of α,β‐unsaturated hydrazones of type 1 (1‐aza‐1,3‐butadienes) with 2‐halogenomaleimides 4 affords 1,4‐dihydropyridines 6 which, after treatment with an acid, yield highly substituted pyridine‐2,3‐dicarboximide derivatives 7 ( Scheme 1 ).

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