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Photochemical Fragmentation of Irgacure PAG 103.

ABSTRACT: Photoisomerization of Irgacure PAG 103 followed by photocyclization and fragmentation leads to three tricyclic thieno[2,3-b]quinoline-4-carbonitrile heterocyclic compounds. The release of acid which can catalyze polymer resist modifications is indicated by the low pH of an aqueous extract. These reactions are discussed in view of possible mechanisms and how these might influence future design strategies.

SUBMITTER: Plater MJ

PROVIDER: S-EPMC6882104 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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Photochemical Fragmentation of Irgacure PAG 103.

Plater M John MJ Harrison William T A WTA Raab Andrea A

ACS omega 20191112 22

Photoisomerization of Irgacure PAG 103 followed by photocyclization and fragmentation leads to three tricyclic thieno[2,3-<i>b</i>]quinoline-4-carbonitrile heterocyclic compounds. The release of acid which can catalyze polymer resist modifications is indicated by the low pH of an aqueous extract. These reactions are discussed in view of possible mechanisms and how these might influence future design strategies. ...[more]

PMID: 31788620

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