oa South African Journal of Chemistry - Synthesis of (S)-3-Aminoethyl-1,2,3,4-Tetrahydroisoquinoline (TIQ-Diamine) via the Mitsunobu Protocol : research article

Volume 63, Issue 1
  • ISSN : 0379-4350



The synthesis of (S)-3-Aminoethyl-1, 2, 3, 4-tetrahydroisoquinoline (TIQ-diamine) was successfully achieved via the Mitsunobu protocol. The method from earlier reports utilizing aminolysis of commercially available TIQ-amino methyl ester, and reduction of the amide, proved to be inadequate for preparation of TIQ-diamines. The modified route requires three additional steps and consequently rendered three novel intermediates, which were furnished under mild conditions.

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