Synthesis of 1¡ä,3,3¡ä,4-tetrahydrospiro[chromene-2,2¡ä-indoles] as a new class of ultrafast light-driven molecular switch

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• 作者：Migl? Dagilien? ; Vytas Martynaitis ; Mikas Vengris ; Kipras Redeckas ; Vladislava Voiciuk ; Wolfgang Holzer ; Algirdas ?a?kus
• 关键词：Indoles ; Fisher's base ; Spiro[chromene-2 ; 2&prime ; -indoles] ; Molecular switches ; Photochromism
• 刊名：Tetrahedron
• 出版年：2013
• 出版时间：4 November, 2013
• 年：2013
• 卷：69
• 期：44
• 页码：9309-9315
• 全文大小：1134 K

文摘

A new class of ultrafast light-driven molecular switch has been designed and synthesized. The reaction of 1-substituted 2-methylidene-3,3-dimethyl-2,3-dihydro-1H-indoles with 2-chloromethyl-4-nitrophenol afforded 1¡ä,3,3¡ä,4-tetrahydrospiro[chromene-2,2¡ä-indoles], following a basic workup. The spectroscopic properties and nanosecond-resolved photoinduced dynamics of five compounds in the 1¡ä,3,3¡ä,4-tetrahydrospiro[chromene-2,2¡ä-indole] family were investigated.