
TY  - JOUR
A1  - Jessup, PJ 
A1  - Reiss, JA 
T1  - Cyclophanes. V. Biphenylnaphthalenophanes and the synthesis of Hexa[7]circulene
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1976
VL  - 29
IS  - 1
SP  - 173
EP  - 178
KW  - 
UR  - https://doi.org/10.1071/CH9760173 
N2  - 2,13-Dithia[3,3](3,3')biphenyl(2,7)naphthalenophane (5) was prepared from 3,3'-bis(bromomethyl)- biphenyl and 2,7-bis(mercaptomethyl)naphthalene. Ring contraction of (5) followed by elimination of the sulphur function gave [2,2](3,3')biphenyl(2,7) naphthalenophane-l,ll-diene (11) which on photochemical oxidative ring closure yielded hexa[7]circulene (3) a non-alternant hydrocarbon. The thermal elimination of methylsulphenic acid under vacuum is shown to be an efficient method for the 
ER  -

