4-Methylbenzyl chloride → HCID 54503915, compound

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Reaction Steps

Prepared from 2-(2-tert-butyldimethylsiloxyethyl)-3,4-dihydro-3-oxo-2H-1,4-benzoxazine by Methods F and G alkylating with 4-methylbenzyl chloride, in 50% overall yield. This material was crystallized from ether to afford a white solid, mp 92°-94° C.; IR (KBr) 3496, 1659, 1503, 1405, 1304, 1283, 1248, 1063, 801 cm-1 ; 1H NMR (CDCl3) δ2.18-2.36 (m, 5H), 3.91 (q, J=5.7, 2H), 4.83 (dd, J=7.4, 5.7, 1H), 5.12 (s, 2H), 6.90-7.00 (m, 4H), 7.13 (s, 4H); MH+ at m/z=298; Anal. Calc'd for C18H19NO3 : C, 72.71; H, 6.44; N, 4.71. Found: C, 72.71; H, 6.48; N, 4.65.

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