Synthesis and photochemistry of 2,2-di-tert-butyl-6-(4,4-di-tert-butylbuta-1,3-dienyl)-2H-pyran

Authors
Kilickiran, P Sankararaman, S Hopf, H
Citation
P. Kilickiran et al., Synthesis and photochemistry of 2,2-di-tert-butyl-6-(4,4-di-tert-butylbuta-1,3-dienyl)-2H-pyran, I J CHEM B, 40(9), 2001, pp. 781-785
Citations number
17
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY
ISSN journal
03764699 → ACNP
Volume
40
Issue
9
Year of publication
2001
Pages
781 - 785
Database
ISI
SICI code
0376-4699(200109)40:9<781:SAPO2>2.0.ZU;2-S
Abstract
E,E-1,1,9,9-tetra-tert-butylnona-1,3,6,8-tetraen-5-one 7 undergoes cyclizat ion under both basic and acidic conditions to yield 2,2-di-tert-butyl-6-(4, 4-di-tert-butylbuta-1,3-dienyl)-2H-pyran 6. Upon photolysis of the 2H-pyran derivative ring opening to the ketone is observed. The 2H-pyran derivative is fluorescent and its fluorescence quantum yield and life time have been measured in cyclohexane and acetonitrile.