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Fused heterocycles. 8. An efficient procedure for the stereoselective synthesis of trans-2,3,3a,4-tetrahydro-3-aryl-2-phenyl[1]benzopyrano[4,3-c]pyrazoles and their [1]benzothiopyrano analogues

✍ Scribed by Albert Lévai


Publisher
Journal of Heterocyclic Chemistry
Year
1998
Tongue
English
Weight
288 KB
Volume
35
Category
Article
ISSN
0022-152X

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✍ Zhongli Gao; Thomas B. K. Lee; Barbara S. Rauckman 📂 Article 📅 2000 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 179 KB

## Abstract The title compound is synthesized in high yields and purity from (‐)‐eserethole (**2a**) __via__ a lithium bromide catalyzed hydrobromic acid __O__‐dealkylation procedure as the key step.