A novel synthesis of compound having the formula: ##STR1## wherein T is a stabilizing spiro-linked polycycloalkylidene group, R.sup.3 is a C.sub.1 -C.sub.20 alkyl, aralkyl or heteroatom containing group, Y is an aromatic fluorescent chromophore, and Z is a cleavable group which, when cleaved, induces decomposition of the dioxetane ring and emission of optically detectable light, is disclosed. A tertiary phosphorous acid alkyl ester of the formula: (R.sup.1 O).sub.3 P wherein R.sup.1 is a lower alkyl group, is reacted with an aryl dialkyl acetal produced by reacting a corresponding aryl aldehyde with an alcohol of the formula: R.sup.3 OH wherein R.sup.3 is as defined above, to produce a 1-alkoxy-1-aryl-methane phosphonate ester of the formula: ##STR2## reacting the phosphonate with base to produce a phosphonate-stabilized carbanion, reacting the carbanion with a ketone of the formula: ##STR3## wherein T is as defined above, to produce an enol ether of the formula: ##STR4## then oxygenating the double bond in the enol ether to give the corresponding 1,2-dioxetane compound.
本发明揭示了一种具有以下式子的化合物的新合成方法:##STR1## 其中T是稳定的螺环烷基亚烷基群,R.sup.3是C.sub.1-C.sub.20烷基,芳基烷基或含杂原子的基团,Y是芳香性荧光色团,Z是可解离基团,当解离时,诱导二氧杂
环丙烷环的分解和发射出光学可检测的光。将式子为(R.sup.1 O).sub.3 P的三级
膦酸烷基酯(其中R.sup.1是较低的烷基)与通过将相应的芳基醛与式子为R.sup.3 OH的醇反应而产生的芳基二烷基
缩醛反应,以产生式子为:##STR2## 将
磷酸酯与碱反应以产生
磷酸酯稳定的碳负离子,将碳负离子与式子为:##STR3## 其中T如上所述,反应以产生式子为:##STR4## 然后氧化烯醚中的双键以给出相应的1,2-二氧杂
环丙烷化合物。