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Synthesis of Enantiomerically Pure (R)- and (S)-α Hydroxyketones and Vicinal Diols; Asymmetric Nucleophilic Carbamoylation

✍ Scribed by Prof. Dr. Dieter Enders; Dipl.-Chem. Hermann Lotter

Publisher: John Wiley and Sons
Year: 1981
Tongue: English
Weight: 239 KB
Volume: 20
Category: Article
ISSN: 0044-8249
DOI: 10.1002/anie.198107951

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✦ Synopsis

1900 cm-', which we assign to a n antisymmetric BN2 vibration in ( I ) and (2).

The heteroallene structure of ( I ) was confirmed by X-ray structure analysis. The projection onto the a / c plane of the monoclinically crystallizing compound (Fig. 1) shows a linear NBN framework ( Q NBN 176(3)") and orthogonal orientation of the C2N planes (88"). One of the two BN distances was found to be 130(4) pm. This is the shortest so far recorded"].

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