BULETINUL SOCIETĂŢII DE SCIINŢE 



349 



HO— C 6 H 4 — CH=CH— CH'=CH— C 6 H 4 — OH 



Butane-diene 1. 3 — diphenyl 1. 4— diol 4'. 4". 

 (Existe comme ether dimethylique). 



CH 



CH, 



J^QH 8 — C 6 H 3 <T 

 OH OH 



Biphenyl— dimethyl 3. 3'-diol 4. 4'. 



CH, 



HO— C 6 H 4 — CH— C G H 4 — OH 



fithane —diphenyl 1-diol 4'. 4". 



CH 3 



I 

 HO-C 6 H 4 — C— QH 4 -OH 



I 

 CH 3 



Propane— diphenyl 2-diol 4'. 4". 



C 2 H 5 



HO— C H 4 — C— C 6 H 4 — OH 



I 

 C 2 H 5 



Pentane— diphenyl 3-diol 4'. 4". 



QH 7 

 HO— C C H 4 — C— C G H 4 -OH 

 C 3 H 7 



Heptane— diphenyl 4-diol 4'. 4". 



CH, 



HO— C 6 H 4 — C— C 6 H 4 — OH 



fîthene — diphenyl 1-diol 4'. 4". 



CH 3 



I 

 HO-C 6 H 4 — C— C 6 H 4 — OH 



J 

 CeHi3 



Ethane— cyclohexanyl 1, diphenyl 1-diol 4'. i". 



CH 3 



I 

 CH 



II 

 HO— QH 4 — C— C 6 H 4 — OH 



Propune -diphenyl 1-diol 4'. 4". 



QH 5 



CH, 



HO— QH 4 — CH— C 6 H 4 — OH CH 5 — CH-C fi H 4 — CH=CH-C 6 H 4 -OH 



4" 12 2' 



Methane — triphenyl-diol 3'. 3". 

 et 4'. 4". 



Ethene— methyl etho 4" phenyl î, phenyl 2— ol 2' 

 (p — isopropyloxystilben) 



C H 4 . QH 4 -OH 



! > c < 



C 6 H 4 C 6 H 4 — OH 



Methane — biphenylene 1 — 4'. 1 — 4", diphenyl-diol 4'". 4' 

 Fluorene para-diphenyl l t — diol 4". 4'". 



