Efficient large (ca. 40 g) laboratory scale preparation of (S)-and (R)-valine tert-butyl esters
VP Krasnov, GL Levit, IM Bukrina, AM Demin…
Index: Tetrahedron Asymmetry, , vol. 13, # 17 p. 1911 - 1914
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Citation Number: 11
Abstract
... solubility of valine in dioxane–H 2 SO 4 mixture during esterification with 2-methylpropene, and therefore to drastically decrease the reactor volume. ... 3. Deimer K.-H. In Houben-Weyl, 4th ed.; Wunsch, E., Ed.; Thieme: Stuttgart, 1975; Vol. ... Tetrahedron: Asymmetry, 10 (1999), pp. ...
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