Synthesis 2014; 46(13): 1739-1750
DOI: 10.1055/s-0033-1341239
paper
© Georg Thieme Verlag Stuttgart · New York

Nucleophilic Addition of Lewis Acid Complexed α-Amino Carbanions to Arynes: Synthesis of 1-Aryl-N-methyl-1,2,3,4-tetrahydroisoquinolines

Kamal Nain Singh*
Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India   Fax: +91(172)2545074   eMail: kns@pu.ac.in
,
Paramjit Singh
Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India   Fax: +91(172)2545074   eMail: kns@pu.ac.in
,
Esha Sharma
Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India   Fax: +91(172)2545074   eMail: kns@pu.ac.in
,
Yadwinder Singh Deol
Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India   Fax: +91(172)2545074   eMail: kns@pu.ac.in
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Publikationsverlauf

Received: 13. Februar 2014

Accepted after revision: 28. März 2014

Publikationsdatum:
12. Mai 2014 (online)


Abstract

The direct C-1 arylation of N-methyl-1,2,3,4-tetrahydroisoquinolines via coupling of α-amino carbanions derived from Lewis acid complexed tetrahydroisoquinolines and in situ generated arynes is described. This process provides an easy access to the title compounds and a new synthetic route to (±)-cryptostyline alkaloids.

Supporting Information