Int. J. Mol. Sci. 2012, 13(3), 2727-2743; doi:10.3390/ijms13032727
Synthesis and Characterization of Privileged Monodentate Phosphoramidite Ligands and Chiral Brønsted Acids Derived from D-Mannitol
Abdullah Mohammed A. Al-Majid *
, Assem Barakat *
, Yahia Nasser Mabkhot and Mohammad Shahidul Islam
, Yahia Nasser Mabkhot and Mohammad Shahidul IslamDepartment of Chemistry, Faculty of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
*
Authors to whom correspondence should be addressed.
Received: 28 December 2011 / Revised: 6 February 2012 / Accepted: 20 February 2012 / Published: 29 February 2012
Abstract
The synthesis of several novel chiral phosphoramidite ligands (L1–L8) with C2 symmetric, pseudo C2 symmetric secondary amines and chiral Brønsted acids 1a,b has been achieved. These chiral auxiliaries were obtained from commercially available d-mannitol, and secondary amines in moderate to excellent yields. Excellent diastereoselectivites of ten chiral auxiliaries were obtained. The chiral phosphoramidite ligands and chiral Brønsted acids were fully characterized by spectroscopic methods. View Full-TextKeywords:
phosphoramidite; Brønsted acid; d-mannitol
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MDPI and ACS Style
Al-Majid, A.M.A.; Barakat, A.; Mabkhot, Y.N.; Islam, M.S. Synthesis and Characterization of Privileged Monodentate Phosphoramidite Ligands and Chiral Brønsted Acids Derived from D-Mannitol. Int. J. Mol. Sci. 2012, 13, 2727-2743.
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