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J. C. Sheehan and D.-D. H. Yang, “The Use of N-Formylamino Acids in Peptide Synthesis,” Journal of the American Chemical Society, Vol. 80, No. 5, 1958, pp. 1154-1158. http://dx.doi.org/10.1021/ja01538a036

has been cited by the following article:

• TITLE: Recyclable Cyclohexanediamine Derivatives as Organocatalysts: Organocatalytic Reduction with Trichlorosilane and Aldol Reaction

  AUTHORS: Yuya Tanimura, Kaori Ishimaru

  KEYWORDS: Aldol Reaction; Cyclohexanediamine; Organocatalysis; Recyclable; Reduction

  JOURNAL NAME: International Journal of Organic Chemistry, Vol.3 No.4, December 27, 2013

  ABSTRACT: Reduction of ketimine with trichlorosilane was carried out using bisformamide catalyst 1a derived from cyclohexanediamine to give the corresponding product in 81% yield with 39% ee. Deprotection of the formyl groups of the catalysts 1 gave the corresponding diamines 2 which were utilized in aldol reaction of acetone with 4-nitrobenzaldehyde. The reaction using 2b in brine afforded the aldol adduct in 81% yield with 29% ee.