2013
DOI: 10.1002/chem.201203533
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Synthesis of 1,2,3,4‐Tetrahydroisoquinolines by Microreactor‐Mediated Thermal Isomerization of Laterally Lithiated Arylaziridines

Abstract: Flow chemistry: A flow-microreactor-mediated synthesis of 1,2,3,4-tetrahydroisoquinolines (THIQs) is reported (see scheme). Starting from a laterally lithiated aziridine, a tetrahydroisoquinoline lithiated at C4 was generated by thermally induced isomerization. Because the reaction temperature is a crucial parameter, the exquisite thermal control possible in a flow-microreactor system allowed for fast, efficient, and highly reproducible synthesis of functionalized aziridines or THIQs.

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Cited by 52 publications
(28 citation statements)
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“…Luisi and Yoshida reported another example of reaction pathways switch exploiting a thermally induced isomerization of laterally lithiated aziridines [27]. In this report, taking advantage of the exquisite temperature control realized in flow microreactors, either functionalized arylaziridines or 1,2,3,4-tetrahydroisoquinolines (THIQs) were synthesized.…”
Section: Methodsmentioning
confidence: 99%
“…Luisi and Yoshida reported another example of reaction pathways switch exploiting a thermally induced isomerization of laterally lithiated aziridines [27]. In this report, taking advantage of the exquisite temperature control realized in flow microreactors, either functionalized arylaziridines or 1,2,3,4-tetrahydroisoquinolines (THIQs) were synthesized.…”
Section: Methodsmentioning
confidence: 99%
“…For example, microreactors have been used to prepare enantiomerically pure products [24,25], fluoro-organic compounds [26][27][28][29], β-peptides [30], tetrahydroisoquinolines [31], and 2-aminothiazoles via the Hantzsch reaction [32]. The Koch-Haaf carboxylation of adamantanols is also described [33].…”
Section: Microreactors In Chemistrymentioning
confidence: 99%
“…The flow microreactor method can also be applied to the generation and reactions of α-triphenylsilyloxiranyllithium from epoxyethyltriphenylsilane and aziridinyllithiums from N-Bus-aziridines and N-tosylaziridines [56][57][58][59]. Recently, the efficient and highly reproducible synthesis of functionalized aziridines and 1,2,3,4-tetrahydroisoquinolines (THIQs) has also been reported [60].…”
Section: Control Of Unstable Organolithiums Using Flow Microreactorsmentioning
confidence: 99%