Hexane → HCID 53708608, compound

Participants

Reaction Steps

Prepared from 2-(2-tert-butyldimethylsiloxyethyl)-6-carbomethoxy-3,4-dihydro-3-oxo-2H-1,4-benzoxazine by Methods F and G, alkylating with 3-chlorobenzyl bromide, in 70% overall yield as a white solid, after trituration with hexane, IR (KBr) 3468, 2952, 1688, 1452, 1285, 1260, 765 cm-1 ; 1H NMR (CDCl3) δ 1.61 (br s, 1H plus HDO), 2.17-2.39 (m, 2H), 3.86 (s, 3H), 3.93 (t, J=5.7 Hz, 2H), 4.94 (dd, J=7.6, 5.5 Hz, 1H), 5.16 (s, 2H), 7.04 (d, J=8.4, 1H), 7.15-7.33 (m, 4H), 7.59 (d, J=1.8 Hz, 1H), 7.71 (dd, J=8.4, 1.8 Hz, 1H); MH+ at m/z=376; Anal. Calc'd for C19 H18ClNO5.0.1 H2O: C, 60.44; H, 4.86; N, 3.71. Found: C, 60.26; H, 4.60; N, 3.58.

Provenance & Evidence