A concise synthesis of (E)-3-aryl-2,3,4,5-tetrahydro-1H-3-benzazonines by aryne induced [2,3] Stevens rearrangement of 1,2,3,4-tetrahydroisoquinolines?
Organic & Biomolecular Chemistry Pub Date: 2018-09-20 DOI: 10.1039/C8OB02099J
Abstract
A mild and transition-metal-free approach for the synthesis of (E)-3-aryl-2,3,4,5-tetrahydro-1H-3-benzazonines via [2,3] Stevens rearrangement of 1,2,3,4-tetrahydroisoquinolines with arynes is described. This protocol provides straightforward access to (E)-3-aryl-2,3,4,5-tetrahydro-1H-3-benzazonines in moderate to good yields with excellent diastereoselectivity. A broad range of functional groups, involving nitrile, esters, ketone and aryl halide, were well tolerated in this reaction.
![Graphical abstract: A concise synthesis of (E)-3-aryl-2,3,4,5-tetrahydro-1H-3-benzazonines by aryne induced [2,3] Stevens rearrangement of 1,2,3,4-tetrahydroisoquinolines](http://scimg.chem960.com/usr/1/C8OB02099J.jpg)
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Journal Name：Organic & Biomolecular Chemistry
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CAS no.: 89640-58-4
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