Trimethyl-l,2-dioxetane

Fig. 31. Thermal decomposition of the cyclic peroxide, 3,3,4-trimethyl-l,2-dioxetane, to give chemiluminescence.

Adam, W., Beinhauer, A., Fisher, R., and Hauer, H., A psoralen-substituted dioxetane as DNA intercalator for photogenotoxic studies. Angew. Chem., Int. Ed. Engl. 26, 796-797 (1987). Adam, W., Bhushan, V., Fuchs, R., and Kirchgassner, U., Functionalized 1,2-dioxetanes as potential phototherapeutic agents. The synthesis of carboxylate, carbonate, carbamate, and ether derivatives of 3- (hydroxymethyl)-3,4,4-Trimethyl-l,2-dioxetane. J. Org. Chem. 52, 3059-3062 (1987). 

Luminescence due to the decomposition of tetramethyl-1,2-dioxetane in benzene yielded a maximum value for wavelength of 430-440 mvi. This is similar to the spectrum of luminescence obtained by Kopecky (1969) for the thermal decomposition of 3,3,4-trimethyl-l,2-dioxetane with a maximum emission of 430-440 mji. Decomposition of these transient 1,2-dioxetanes form the electronically excited carbonyl compounds acetone and acetone/acetaldehyde, respectively. By excitation of acetone and acetaldehyde either singly, or as a 50% mixture of each with O2 generated from KO2, we obtained identical photon interference data placing the maximum emission around 435 my. 

Dioxetan 3-Ethoxymethyl-3,4,4-trimethyl-E13/l,419(OH - OR) Ethan 1 -Ethoxy-1 -(2-methyl-propanoyloxy)- E14a/1, 326 (Enol-ether + R-COOH)... 

Cyclopropan l-(4-Methyl-phenyl-sulfonyl)- , 2,3-trimethoxy- E19b, 1732 f. (Carben + En) 1,2-Dioxetan 3-(4-Methyl-benzol-sulfonyloxy-methyl)-3,4,4-trimethyl- El3/1, 420 (OH - ... 

---