- Synthesis of 1,2,3,4,5,8-Hexahydroisoquinoline-5,8-diones Using Oxidative Demethylation with Ceric Ammonium Nitrate or Argentic Oxide
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The oxidative demethylation of 5,7,8-trimethoxy-1,2,3,4-tetrahydroisoquinolines to the corresponding 7-methoxy-1,2,3,4,5,8-hexahydroisoquinoline-5,8-diones is described.Keywords: synthesis; ceric ammonium nitrate; argentic oxide; oxidative demethylation;
- Kitahara, Yoshiyasu,Nakahara, Shinsuke,Koizumi, Yuichi,Muranishi, Harumi,Kubo, Akinori
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p. 3623 - 3627
(2007/10/02)
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- A Facile Sythesis of 1,2,3,4-Tetrahydroisoquinolines Through Cyclization of O,N-Acetals
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A mild and efficient method for the synthesis of 1,2,3,4-tetrahydroisoquinolines by a modified Pictet-Spengler reaction involving Lewis acid-mediated cyclization of O,N-acetals is described.
- Kubo, Akinori,Saito, Naoki,Kawakami, Nanko,Matsuyama, Yasuo,Miwa, Teruyo
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p. 824 - 827
(2007/10/02)
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