| 摘要 |
NEW MATERIAL:8-Acryloyl-1,4-dioxa-8-aza-spiro[4,5]decane expressed by formula I. USE:With a transition temperature, utilizable as, e.g. light shielding substances for greenhouses, chemical laboratories, radioisotope laboratories, etc., temperature sensors, adsorbents for surfactants, as well as toys, interiors, printing agents, displays, separation membranes, mechanochemical element materials, etc., and useful as a raw material monomer for synthesizing heat reversible polyacrylamide derivatives, reversibly soluble in water at low temperatures and insoluble in water within high temperature regions. PREPARATION:For example, as shown in the reaction formula, acryloyl chloride is reacted with 1,4-dioxa-8-azabicyclo[4,5]decane and triethylamine in a solvent, preferably at 0-10 deg.C to afford the aimed compound expressed by formula I. |
