Naslov
Laser Flash Photolysis Study of Differently Substituted Adamantylphthalimides and Oligopeptides

Autori
Basarić, Nikola ; Mandić, Leo ; Džeba, Iva ; Mihaljević, Branka

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Central European Conference on Photochemistry CECP 2020 / - , 2020, 41-41

Skup
Central European Conference on Photochemistry CECP 2020

Mjesto i datum
Bad Hofgastein, Austrija, 09.02.2020. - 13.02.2020

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
decarboxylation ; photochemistry ; photoinduced electron transfer ; phthalimides

Sažetak
Phthalimide is a versatile chromophore that has been utilized in a number of photochemical reactions, often giving complex molecules in the synthesis of natural products [1]. Among different photochemical processes known for the phthalimide chromophore, [2] it has been demonstrated that phthalimide in the triplet excited state undergoes facile electron transfer (ET) from good electron donors [3]. For example, such a photoinduced ET from carboxylate as an electron donor can initiate decarboxylation reaction, and plethora of different subsequent photochemical processes [4]. We have become interested in photodecarboxylation reactions of phthalimide derivatives and investigated a series of adamantylphthalimides 1-6 with different distance between the electron donor (carboxylate) and the acceptor (phthalimide) [5], as well as in the series of substituted phthalimides 6-11, or tetra- and pentapeptides 12-17 [6]. Herein we present results obtained by nanosecond laser flash photolysis (LFP), which allowed for the detection of the phthalimide triplet excited state and investigation of its reactivity. The results put in question if the triplet excited state detected by LFP is responsible for the observed photoinduced electron transfer reactivity.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA