Formation of 2,2-dimethylchroman-4-ones during the photoinduced rearrangement of some aryl 3-methyl-2-butenoate esters. A mechanistic insight
作者:Daniela Iguchi、Rosa Erra-Balsells、Sergio M. Bonesi
DOI:10.1016/j.tet.2016.02.039
日期:2016.4
Several aryl 3-methyl-2-butenoate esters upon irradiation lead to the formation of [1,3]-migrated photoproducts, phenol and, surprisingly 2,2-dimethylchroman-4-one derivatives. The starting photochemical reaction takes place from the singlet excited state of the ester and as a total mechanism two consecutive reaction pathways are proposed. The former involves the photo-Fries rearrangement of the esters
A corrosion detection product is a coating including a film forming material and a complexing agent, the complexing agent forming a complex when it comes into contact with a corrosion byproduct produced by corrosion of a substrate on which the coating is applied, the complex being detectably different from the complexing agent when the coating is exposed to radiation in order to detect the corrosion, the complexing agent being immobilized in the coating to reduce leaching of the complexing agent or the complex from the coating.
US8623653B2
申请人:——
公开号:US8623653B2
公开(公告)日:2014-01-07
[EN] CORROSION DETECTION PRODUCT AND METHOD<br/>[FR] PRODUIT DE DÉTECTION DE CORROSION, ET PROCÉDÉ
申请人:BATTELLE MEMORIAL INSTITUTE
公开号:WO2009126802A1
公开(公告)日:2009-10-15
A corrosion detection product is a coating including a film forming material and a complexing agent, the complexing agent forming a complex when it comes into contact with a corrosion byproduct produced by corrosion of a substrate on which the coating is applied, the complex being detectably different from the complexing agent when the coating is exposed to radiation in order to detect the corrosion, the complexing agent being immobilized in the coating to reduce leaching of the complexing agent or the complex from the coating.