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4,5-Dimethyl-9,10-diazaphenanthrene N,N'-dioxide

✍ Scribed by Whittleton, S. N. ;Dunitz, J. D.

Book ID
114528655
Publisher
International Union of Crystallography
Year
1982
Weight
196 KB
Volume
38
Category
Article
ISSN
0567-7408

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Synthetic approaches to 4,8-dimethyl-5′-(N-pyridiniummethyl)- 4′,5′-dihydropsoralens and 4,8-dimethyl-5′- (N-aminomethyl)- 4′,5′-dihydropsoralens
✍ Marilyn S. Whittemore; Ned D. Heindel; Ivan Jabin; Christophe Guillon; Thomas E. 📂 Article 📅 2001 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 76 KB

## Abstract New synthetic approaches to 4,8‐dimethyl‐5′‐(__N__‐pyridiniummethyl)‐4′,5′‐dihydropsoralens and 4,8‐dimemyl‐5′‐(__N__‐aminomethyl)‐4′,5′‐dihydropsoralens are described. The 5′‐halomethyl‐4′,5′‐dihydro‐psoralen precursors are formed by electrophilic ring closures of 4,8‐dimethyl‐6‐allyl‐