Synthesis of bulky aryl group-substituted chiral bis(guanidino) iminophosphoranes as uncharged chiral organosuperbase catalysts

Tadahiro Takeda, Masahiro Terada

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Uncharged chiral bis(guanidino)iminophosphorane organosuperbase catalysts substituted by bulky aryl groups were synthesized. The synthetic procedure for the 7,7-membered spiro-cyclization step was modified to enhance the chemical yield of bis(guanidino)iminophosphorane derived from (1S,2S)-1,2-diphenyl-1,2- ethanediamine. In accordance with the amended procedure, bis(guanidino) iminophosphoranes with bulky aryl substituents were newly synthesized and evaluated as chiral organosuperbase catalysts in the enantioselective amination of 2-methyltetralone.

Original languageEnglish
Pages (from-to)1124-1128
Number of pages5
JournalAustralian Journal of Chemistry
Volume67
Issue number7
DOIs
Publication statusPublished - 2014

ASJC Scopus subject areas

  • Chemistry(all)

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