saturated nahco 3 and water and concentrated in vacuo to give a residue flash column chromatography using silica gel hexanes gives the title product as a cream colored solid in 67 3 yield mp 98 u00b0 101 u00b0 c identified by ir 1 hnmr 13 cnmr 19 fnmr and c h and n elemental analyses using essentially the same procedure described in example 34 and substituting the appropriate n arylthiohydrazone substrate the following compounds shown in table iii are prepared all compounds obtained are identified by 1 hnmr 13 cnmr ir mass spectral and elemental analyses table iii__________________________________________________________________________ str24 ex no a b w yn r r sub 1 mp u00b0 c yield__________________________________________________________________________35 ccl ch ccf sub 3 6 cl c ch sub 3 sub 3 ch sub 3 119 5 121 5 29 436 ccl ch ccf sub 3 6 cl c ch sub 3 sub 3 ch ch sub 3 sub 2 oil 89 437 ccl ch ccf sub 3 6 cl c ch sub 3 sub 3 cyclohexyl soft solid 78 638 ccl ch ccf sub 3 6 cl c ch sub 3 sub 3 ch sub 2 c sub 6 h sub 5 soft solid 94 339 ccl ch ccf sub 3 6 cl cf sub 3 ch sub 2 ch sub 3 88 5 90 7940 ccl ch ccf sub 3 6 cl c ch sub 3 sub 3 str25 soft solid 58 841 ccl ch ccf sub 3 6 cl c ch sub 3 sub 3 ch sub 2 chch sub 2 oil 48 242 ccl ch ccl 6 cl c.