Synthesis of tetrahydrobenzoisoquinolinols, tetrahydropyrindines, and hexahydroquinolines from 4-aryltetrahydropyridines
In: Tetrahedron (Oxford. Print), Jg. 67 (2011), Heft 25
academicJournal
- print,
Zugriff:
A straightforward synthesis of tetrahydrobenzoisoquinolinols 2, tetrahydropyrindines 3, and hexahydroquinolines 4 from versatile intermediate 6 is reported. Two key transformations were carried out by intramolecular Friedel―Crafts cyclization and ring-closing metathesis in moderate yields. Skeleton 6 was easily prepared from the known starting material 4-aryl-4-methoxypiperidin-3-ones 7 via Wittig olefination with Ph3P=CHCO2Et, deconjugation with 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), and boron trifluoride etherate (BF3―OEt2)-catalyzed addition of the corresponding iminium ion with allyltrimethylsilane.
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Synthesis of tetrahydrobenzoisoquinolinols, tetrahydropyrindines, and hexahydroquinolines from 4-aryltetrahydropyridines
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Autor/in / Beteiligte Person: | CHANG, Meng-Yang ; LEE, Ming-Fang ; CHEN, Yeh-Long |
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Zeitschrift: | Tetrahedron (Oxford. Print), Jg. 67 (2011), Heft 25 |
Veröffentlichung: | Kidlington: Elsevier, 2011 |
Medientyp: | academicJournal |
Umfang: | print, |
ISSN: | 0040-4020 (print) |
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