Premium
Fluorénacènes et fluorénaphènes Synthèses dans la série des indéno‐fluorènes, XVI. Méthyl‐5‐, diméthyl‐5, 6‐ et diphényl‐5, 6‐dihydro‐11, 12‐indéno [2.1‐ a ] fluorène
Author(s) -
Chardonnens Louis,
Bitsch Serge
Publication year - 1972
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19720550502
Subject(s) - chemistry , fluorene , medicinal chemistry , organic chemistry , polymer
Starting from 2‐methyl‐ and from 2,3‐dimethyl‐1,4‐diphenyl‐butadiene‐1, 3 respectively, the 5‐methyl‐ and the 5,6‐dimethyl‐11, 12‐dihydro‐indeno[2.1‐ a ]fluorene are synthesized in 4 steps. The 5, 6‐diphenyl‐11, 12‐dihydro‐indeno[2.1‐ a ]fluorene is obtained by reduction of the already known 11, 12‐dioxoderivative. Accesorily a new preparation of the unsubstituted hydrocarbon is described.