Norrish Type I Cleavage of Aliphatic Carboxylic Acids and Esters in Solution. A CIDNP.-study

Autor:	Hanns Fischer, Tony Kaiser
Rok vydání:	1979
Předmět:	CIDNP Organic Chemistry Malonic acid Photochemistry Biochemistry Catalysis Isobutyric acid Inorganic Chemistry chemistry.chemical_compound chemistry Excited state Drug Discovery Molecule Singlet state Physical and Theoretical Chemistry
Zdroj:	Helvetica Chimica Acta. 62:1475-1484
ISSN:	1522-2675 0018-019X
DOI:	10.1002/hlca.19790620512
Popis:	UV.-irradiation of pivalic and isobutyric acid and their methyl esters as well as of α-hydroxy isobutyric and malonic acid in solution lead to chemically induced dynamic nuclear polarization (CIDNP.) of parent compounds and of various reaction products. CIDNP.-effects and product distributions confirm α-cleavage of the C(α), CO bond to be the major mode of photodecomposition. Scavenger experiments indicate that decomposition of the molecules from a triplet excited state is roughly equally or more probable than from a singlet excited state. Quantum yields of educt disappearance are also given for the methyl esters of pivalic and isobutyric acid.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d4a1ab7e9e01983ad7a2ec91ea0444cc https://doi.org/10.1002/hlca.19790620512 Zobrazit plný text záznamu Plný text