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Lactam analogues of pentalene. A new one-pot synthesis of pyrrolo[3,2-b]pyrrole-2,5-diones deriving from pulvinic acid

✍ Scribed by Jörg Wuckelt; Manfred Döring; Peter Langer; Helmar Görls; Rainer Beckert


Book ID
104257504
Publisher
Elsevier Science
Year
1997
Tongue
French
Weight
206 KB
Volume
38
Category
Article
ISSN
0040-4039

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A one-pot synthesis of thiophene and pyr
✍ Cassie E Hewton; Marc C Kimber; Dennis K Taylor 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 53 KB

A one-pot synthesis of 2,5-disubstituted thiophene, 1,2,5-tri-and 2,5-disubstituted pyrrole derivatives from readily available 3,5-dihydro-1,2-dioxines is described. The reaction proceeds by an initial Kornblum-de la Mare rearrangement of the 3,5-dihydro-1,2-dioxine to its isomeric 1,4-diketone foll