Photoisomerisation of the sunscreen filter PARSOL © 1789

Autor:	P. Tiercet, Patrick Gilard, Marc André Lefebvre, Michel Dubois, Andre Deflandre
Rok vydání:	1998
Předmět:	Diketone chemistry.chemical_compound chemistry Photoisomerization Xenon lamp Keto–enol tautomerism Carbon-13 NMR Photochemistry Acetonitrile Biochemistry Enol Tautomer
Zdroj:	Journal de Chimie Physique et de Physico-Chimie Biologique. 95:388-394
ISSN:	0021-7689
DOI:	10.1051/jcp:1998149
Popis:	PARSOL © 1789 exists in solution in three tautomeric forms: two cis-enols and a β-diketone. The enol forms predominate. Irradiation of a very dilute solution of PARSOL © 1789 in acetonotrile with a Xenon lamp increases the percentage of β-diketone to become the predominant form present. This photoisomerisation has been studied by means of 1 H and 13 C NMR.
Databáze:	OpenAIRE
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