... Chem. All Publications/Website. Select a Journal or Book ... To whom correspondence should be addressed. E-mail: mugesh@ipc.iisc.ernet.in. Synopsis. ... Yield: 0.63 g (44%). 1 H NMR (CDCl 3 ) δ (ppm): 2.79 (s, 6H). 13 C NMR (CDCl 3 ) δ (ppm): 16.1, 166.1, 168.9. ...