1,2-dioxetane derivatives, intermediates for syntheses thereof and
申请人:——
公开号:US05650525A1
公开(公告)日:1997-07-22
A chemiluminescent 1,2-dioxetane derivative having a formula (I): ##STR1## wherein R.sup.1 and R.sup.4 each represent, individually, hydrogen, an alkyl group, an alkoxyl group, a hydroxyl group, or --OSi(R.sup.9 R.sup.10 R.sup.11) in which R.sup.9, R.sup.10 and R.sup.11 each represent an alkyl group; R.sup.2, R.sup.3, R.sup.5 and R.sup.6 each represent, individually, hydrogen or an alkyl group, provided that R.sup.2, R.sup.3, R.sup.5 and R.sup.6 each cannot be hydrogen at the same time, and that R.sup.2 and R.sup.3, and R.sup.5 and R.sup.6, each taken together, can form a cycloalkyl group; R.sup.7 represents an alkyl group; R.sup.8 represents hydrogen, an alkoxyl group, a phosphate salt group, or --OSi(R.sup.9 R.sup.10 R.sup.11); intermediates for synthesizing the above 1,2-dioxetane derivative; and methods of producing the intermediates are provided.
3-alkoxymethyl-3-tert-butyl-4-(3-tert-butyldimethylsiloxy)phenyl-4-methoxy-1,2-dioxetanes (2) with TBAF in DMSO gives intensive blue light emission (λmax = 463nm, ΦCL > 0.1) with shorthalf-life (t1/2 < 1 sec), whereas the methylene analogues (6) cause chemiluminescence with far longer half-life. A dioxetane (11) bearing a phosphoryloxyphenyl is cleaved enzymatically by alkaline phosphatase to generate light with high