- Collection:
- Atlanta University and Clark Atlanta University Theses and Dissertations
- Title:
- Synthesis of new bis schiff-base ligands: new fulvenes for use as nonlinear optical materials, 2004
- Creator:
- Jackson, Carl R.
- Date of Original:
- 2004-12-01
- Subject:
- Degrees, Academic
Dissertations, Academic - Location:
- United States, Georgia, Fulton County, Atlanta, 33.749, -84.38798
- Medium:
- theses
- Type:
- Text
- Format:
- application/pdf
- Description:
- As part of an ongoing research program to prepare new substituted fulvenes, benzofulvenes and cyclopentadienes for use as NLO chromophores and starting materials for organometallic synthesis, bis-co,co-(4-methoxyphenyl)benzofulvene, and 6-(3,5-dimethyI-2-hydroxyphenyl)fulvene have been prepared in good yield. Bis-co,co-(4-methoxyphenyl)benzofulvene was prepared in 90 % yield by the base catalyzed condensation of 4.4'-dimethoxybenzophenone with indene. 6-(3,5-Dimethyl-2-hvdroxyphenvl)fulvene was prepared in 83 % yield by the base catalyzed condensation of 3.5- dimethylsalicylaldehyde with cyclopentadiene. A high yield, one pot synthesis, of 7-amino-4-methyl-5-azo-3-heptene-2-one (AMAHO) has been developed by the carefully controlled condensation of acetyiacetone with ethylenediamine. AMAHO once prepared was utilized to prepare 5 new unsymmetrical bis-Schiff base ligands: l-(2'-hydroxyphenyl)-2,5-diazo-6-methylnono-1.6- diene-8-one, l-(2'-hydroxy-3.5-dibromophenyl)-2.5-diazo-6-methylnono-l,6-diene-8-one, l-(3'-methoxy-4-hydroxyphenyl)-2,5-diazo-6-methylnono-l,6-diene-8-one, l-(2'-hydroxy-5-methylphenyl) -2,5-diazo-6-methylnono-l,6-diene-8-one, and 1-(2'-hydroxy-3,5-dimethylphenyl) -2,5-diazo-6-methylnono-l,6-diene-8-one in good yields.
- External Identifiers:
- Metadata URL:
- http://hdl.handle.net/20.500.12322/cau.td:2004_jackson_carl_r
- Rights Holder:
- Clark Atlanta University
- Holding Institution:
- Atlanta University Center Robert W. Woodruff Library
- Rights:
-
