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2,5-Disubstituted Pyrrolidines: Versatile Regioselective and Diastereoselective Synthesis by Enamine Reduction and Subsequent Alkylation.

✍ Scribed by Syed Raziullah Hussaini; Mark G. Moloney


Publisher
John Wiley and Sons
Year
2003
Weight
102 KB
Volume
34
Category
Article
ISSN
0931-7597

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Synthesis of 3,5-disubstituted pyridazin
✍ JΓΌrgen Sauer; Dieter K. Heldmann πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 French βš– 937 KB

Cycloadditions of 3-aryl-l,2.4,5-tetrazines la-o with ethynyltributyltin 5 occur with high regioselectivity to yield 3-aryl-5-tributylstannyl-pyridazines 9-23 in 71-95% yield. Moreover, the stannanes obtained could be utilized as starting materials for the preparation of various 3,5-allsubstituted p