s 8h 4 95 s 2h 6 9 d 1h 7 8 d s 2h 10 6 br s 1h 5 chloroacetyl 1 3 3 trimethyloxindle 82 m p 182 u00b0 185 u00b0 c nmr cdcl 3 1 45 s 6h 3 25 s 3h 4 65 s 2h 6 9 d 1h 7 9 s 1h 8 0 d 1h 6 fluoro 5 chloroacetyl oxindole 96 m p 178 u00b0 180 u00b0 c nmr dmso d 6 3 5 s 2h 4 8 d 2h 6 7 7 2 m 2h 7 8 d 1h 1 ethyl 5 u03b3 chlorobutyryl oxindole 99 oil nmr cdcl 3 1 2 t 3h 1 5 2 7 m 5h 3 0 3 2 m 2h 3 5 4 0 m 3h 6 8 7 0 d 1h 7 9 s 1h 7 95 d 1h and by the same procedure as that used to prepare 5 2 chlorethyl oxindole in example 12b the following were prepared 5 2 chloroethyl 1 ethyloxindole 93 m p 120 u00b0 122 u00b0 c nmr cdcl 3 1 30 t 3h 3 1 t 2h 3 55 s 2h 3 65 4 0 m 4h 6 8 7 3 m 3h 5 2 chloroethyl 1 methyloxindole 99 m p 127 u00b0 130 u00b0 c nmr cdcl 3 3 1 t 2h 3 2 s 2h 3 5 s 2h 3 75 t 2h 6 8 d 1h 7 15 s.