4.6 Article

Chiral Organosuperbase Catalysts as Useful Tools for Developing Enantioselective Reactions

Journal

ALDRICHIMICA ACTA
Volume 55, Issue 1, Pages 9-15

Publisher

ALDRICH CHEMICAL CO INC

Keywords

organocatalysis; organosuperbase; phosphazene; iminophosphorane; binary base; chiral catalyst; asymmetric synthesis; enantioselective addition; enantioselective protonation; [3+2] cycloaddition

Funding

  1. MEXT (Japan) [23105002, 17H06447]
  2. JSPS [16H06354, 16K05680, 25810057]
  3. Grants-in-Aid for Scientific Research [16H06354, 17H06447, 25810057, 16K05680] Funding Source: KAKEN

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In this review, the challenge of expanding the scope of pronucleophiles in the field of chiral Bronsted base catalysis is addressed. The recent efforts to overcome this challenge and broaden the range of viable enantioselective transformations are summarized, focusing on the development and application of two types of chiral organosuperbase catalyst.
In the field of chiral Bronsted base catalysis, a long-standing challenge has been the expansion of the scope of pronucleophiles that can be applied in enantioselective reactions. In this review, we summarize our recent efforts to overcome this challenge and expand the scope of viable enantioselective transformations that are available under this type of catalysis. We accomplished this by developing two types of chiral organosuperbase catalyst and applying them in enantioselective reactions.

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