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Synthesis of hexa-O-methyl-cupressuflavone and -agathisflavone

✍ Scribed by Moriyama, Shigeki; Okigawa, Masayoshi; Kawano, Nobusuke

Book ID
118146181
Publisher
Royal Society of Chemistry
Year
1974
Weight
497 KB
Category
Article
ISSN
1472-7781

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Synthesis of hexa(methyl/phenyl) substit
Synthesis of hexa(methyl/phenyl) substituted pyrazolines and thermolysis to hexasubstituted cyclopropanes
✍ Alfons L. Baumstark; G. Davon Kennedy; P. C. Vasquez; N. Desalegn; Phong Truong 📂 Article 📅 2010 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 112 KB

## Abstract magnified image Addition of methyllithium to the 3‐position of 4,5‐dihydro‐3,4,4,5,5‐pentasubstituted‐__N__‐tosyl‐1H‐pyrazoles [**1a** 4,4,5,5‐tetramethyl‐3‐phenyl; **1b** 4,4,5‐trimethyl‐3,5‐diphenyl; **1c** 4,4‐dimethyl‐3,5,5‐triphenyl] produced the corresponding hexasubstituted pyraz