then diluted with 20 ml of water and the reaction product was taken out in the form of crystals by filtering washed in water and dried thereafter the yield of crystals was 2 4g yield 92 3 and the melting point thereof was in the range of 221 u00b0 223 5 u00b0 c when these crude crystals were recrystallized by employing n n dimethyl formamide there was obtained a yellow colored acicular crystalline compound of the following composition having a melting point in the range of 222 5 u00b0 224 5 u00b0 c __________________________________________________________________________elementary analysis c h n__________________________________________________________________________calculated for c sub 40 h sub 32 n sub 4 o 82 16 5 52 9 58 found 81 85 5 50 9 41 str8 __________________________________________________________________________ by adding a solution prepared by dissolving 0 3g 0 013 gram atom of metallic sodium in 30 ml of ethanol to 2 0g 0 004 mole of compound a and 1 9g 0 009 mole of ferrocenyl aldehyde heating the resulting mixture for 40 minutes while recycling and thereafter cooling it down to room temperature there were separated crystals then the thus separated crystals were taken out by filtering rinsed with methanol and dried thereafter the yield of crystals was 2 2g yield 87 8 and the melting point thereof was in the range of 223 0 u00b0 225 0 u00b0 c when these crude crystals were recrystallized by employing n butanol there was obtained a red colored acicular crystalline compound of the following composition having a melting point in the range of 225 0 u00b0 227 0 u00b0 c ______________________________________elementary analysis c h n______________________________________calculated for c sub 32 h sub 26 n sub 2 ofe sub 2 67 87 4.