I agree Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our website without changing the browser settings you grant us permission to store that information on your device.
3,4-Dibutoxy-3-cyclobutene-1,2-dione was used in the synthesis of novel semisquarylium dye, useful for highly selective Hg2+ sensing in aqueous media. It was also employed in the synthesis of 3-butoxy-4-(1,3,3-trimethyl-2,3-dihydro-1H-2-indolylidenemethyl)-3-cyclobutene-1,2-dione, intermediate for the synthesis of squaryl dyes.
Bae J-S, et al. A benzothiazole-based semisquarylium dye suitable for highly selective Hg2+ sensing in aqueous media.. Dyes and Pigments. 2009, 83(3), 324-27.
Shishkina SV, et al. Molecular and crystal structure of 3-butoxy-4-(1, 3, 3-trimethyl-2, 3-dihydro-1H-2-indolylidenemethyl)-3-cyclobutene-1, 2-dione and its thio analog. J. Struct. Chem. 2005, 46 (1), 154-58.
Reaction with alkyl- or aryllithium compounds results in ring opening to give the corresponding symmetrical 2,3-dibutoxy-1,4-diketones in high yield: Tetrahedron., 51, 12373 (1995).
해저드 설명서 (EU): H315-H319
Causes skin irritation. Causes serious eye irritation.
주의 설명서: P280a-P264-P305+P351+P338-P321-P332+P313-P337+P313
Wear protective gloves and eye/face protection. Wash thoroughly after handling. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Specific treatment (see label). If skin irritation occurs: Get medical advice/attention. If eye irritation persists: