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(Figure presented) The absolute configuration of a 1, 2-prlmary/secondary dlol can be easily determined by preparation of Its bls-(R)- and bls-(S)-9-AMA ester derivatives, followed by comparison of the NMR chemlcal shifts of the dlastereotoplc methylene protons In the two derivatives. Alternatively, the assignment can be carried out using only one derivative If the evolution with temperature of the signals corresponding to the CaH protons Is analyzed.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. Recommanded Product: 4254-15-3, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 4254-15-3, in my other articles.
Reference：
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate