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Volume :30 Issue : 1 2003
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Synthesis of 11-tricyanovinyl and 11-(7,8,8-tricyanoquinodimethane)- 1,3,3-trimethyl-2-methyleneindoline
Auther : ABDULLAH MOHAMED ASIRI
Chemistry Department, Faculty of Science, King Abdul-Aziz University, Jeddah 21589, P.O. Box 80203, Saudi Arabia. Tel: (+ 02)-6952293, Fax (+ 02)-6952292,E-mail: a_asiri@hotmail.com.
ABSTRACT
The addition of tetracyanoethylene and 7,7,8,8-tetracyanoquinodimethane to 1,3,3trimethyl-2-methyleneindoline 1 resulted in the formation of two novel compounds, 9 and 10 respectively, and not the expected products 5 and 6. Compound 9 is dark brown, whereas 10 is deep blue-green. On increasing the solvents polarity, compounds 10 showed remarkable red shift but compound 9 did not.