... Volume 30, Issue 46, 1989, Pages 6423–6426. ... An achiral precedent for this reaction is the rapid hydrolysis of β-methylsulfonyl esters Tetrahedron Letters, 9 (1968), p. 2525. ... The mobile phase was a 12.5% (vol) solution of 2-propanol in a 0.01 M phosphate buffer at pH 7. ...