## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v
✦ LIBER ✦
Asymmetric synthesis of (S)-(−)-tetrahydropalmatine and (S)-(−)-canadine via a sulfinyl-directed Pictet–Spengler cyclization
✍ Scribed by Virginia M. Mastranzo; José Luis Olivares Romero; Francisco Yuste; Benjamín Ortiz; Rubén Sánchez-Obregón; José L. García Ruano
- Book ID
- 113929142
- Publisher
- Elsevier Science
- Year
- 2012
- Tongue
- French
- Weight
- 292 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0040-4020
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The elaboration of 1-alkylthio-and 1-arylthio-tetrahydroisoquinolines by means of the activated Pictet-Spengler reaction of N-sulfonyl-b-phenethylamines with thioorthoesters as electrophiles, and their use as sulfonyl iminium ion precursors for carbon carbon bond formation, leading to 1-substituted