2-tert-butyl-1,2,5-thiadiazolidine 1,1-dioxide

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The title compound was prepared in 70% yield from 2-tert-butyl-1,2,5-thiadiazolidine-1,1-dioxide [M. Preiss, Chem. Ber., 1978, 111, 1915] and 4-nitrobenzyl bromide following the procedure described for Example 1 (Method B, Step 1); mp 113° C. (ethyl acetate-hexane, 60:40); δH (360 MHz, CDCl3) 8.21 (2H, d, J=8.7 Hz, Ar--H), 7.58 (2H, d, J=8.7 Hz, Ar--H), 4.24 (2H, s, Ar--CH2 --), 3.40 (2H, t, J=6.2 Hz, --CH2 --), 3.17 (2H, t, J=6.2 Hz, --CH2 --), 1.44 (9H, t-Bu); m/z (EI) 313 (M+).