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Second generation dötz benzannulation reactions in organic synthesis

✍ Scribed by James E. Painter; Peter Quayle; Prakash Patel


Book ID
103408818
Publisher
Elsevier Science
Year
1995
Tongue
French
Weight
294 KB
Volume
36
Category
Article
ISSN
0040-4039

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Second generation benzannulation reactio
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The facile melallation of 2-chloroglucal derivatives 8 and ! ! affords ready access to the corresponding Fischer catbene complexes 1 0 and 1 3. Carbene complexes i 0 and 13 undergo ben,~anulation reactions with acetylenes to previde functionalised benzopyrans in moderate overall yields.

Dötz Benzannulation Reactions: Heteroato
✍ J. Oscar C. Jimenez-Halla; Miquel Solà 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 881 KB

## Abstract We have carried out a theoretical investigation of the Dötz reaction between acetylene and a series of chromium Fischer‐type carbenes [(CO)~5~CrC(X)R] with different representative substituents (R=CHCH~2~, Ph) and heteroatom ligands (X=OH, NH~2~, OCH~3~, N(CH~3~)~2~) by using density