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Search for "bis-imine" in Full Text gives 3 result(s) in Beilstein Journal of Organic Chemistry.

Benzylic C(sp3)–H fluorination

  • Alexander P. Atkins,
  • Alice C. Dean and
  • Alastair J. J. Lennox

Beilstein J. Org. Chem. 2024, 20, 1527–1547, doi:10.3762/bjoc.20.137

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  • secondary and tertiary substrates too. In 2012, Lectka reported a fluorination of mostly aliphatic C–H bonds that used a molecularly defined copper catalyst with a bis imine ligand, along with co-catalytic N-hydroxyphthalimide and a phase-transfer catalyst [51]. Although only a few benzylic substrates were
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Published 10 Jul 2024
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  • and preparation of suitable salen compounds, sometimes are described as bis-imine Schiff bases. Imines were originally synthesized by Schiff from the condensation of carbonyls with amines [25]. Thereafter, syntheses of salens were extensively reported using timely technologies [26][27][28][29
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Letter
Published 10 Oct 2022

Achiral bis-imine in combination with CoCl2: A remarkable effect on enantioselectivity of lipase-mediated acetylation of racemic secondary alcohol

  • K. Arunkumar,
  • M. Appi Reddy,
  • T. Sravan Kumar,
  • B. Vijaya Kumar,
  • K. B. Chandrasekhar,
  • P. Rajender Kumar and
  • Manojit Pal

Beilstein J. Org. Chem. 2010, 6, 1174–1179, doi:10.3762/bjoc.6.134

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  • Anantapur, Anantapur 515002, Andhra Pradesh, India, Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, Andhra Pradesh, India 10.3762/bjoc.6.134 Abstract A bis-imine (prepared via a new FeCl3-based method) in combination with CoCl2 facilitated lipase-mediated
  • acetylation of the (R)-isomer of a racemic benzylic secondary alcohol with 91% ees. The methodology was used for the preparation of the known drug rivastigmine. Keywords: acetylation; bis-imine; cobalt chloride; enantioselectivity; lipase; Introduction The development and use of newer synthetic methods for
  • preliminary results on the synthesis and identification of a novel ligand for this process (Scheme 1) and its application in the preparation of the known drug rivastigmine [14]. While the uses of bis-imine/transition-metal complexes have been reported for the enantioselective synthesis of chiral compounds [15
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Published 10 Dec 2010
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