17626-93-6Relevant articles and documents
Solvent-free synthesis of dihydroxy dithiacrown ethers
Zoghlami, Houcine,Romdhani-Younes, Moufida,Chaabouni, Mohamed Moncef,Baklouti, Ahmed
, p. 881 - 883 (2011)
The solvent-free reaction of oligoethylene glycol diglycidyl ethers with dimercaptoethane in the presence of benzyltrimethylammonium hydroxide (Triton B) gave, via regiospecific epoxide opening reactions, dihydroxy dithiacrown ethers in excellent yields and in short reaction times.
Facile Synthesis of Hydroxy-Substituted Thiacrown Ethers via Nucleophilic Ring Opening of Epoxides
Stefaniak, Monika,Romański, Jaros?aw
, p. 2214 - 2220 (2019)
The title thiacrown ethers were prepared in a one-step procedure to give a series of unique macrocycles possessing two unsubstituted hydroxy groups that can be easily functionalized. In addition, epoxides and macrocycles derived from Cookson's birdcage diketone, were prepared. The nucleophilic ring opening of epoxides synthesis can be classified in the frame of click chemistry. Surprisingly, some of the prepared allyl substituted polyglycols as well as bis-epoxides, especially sulfur analogues, were prepared for the first time.
Polyoxyalkylene substituted and bridged triazine, benzotriazole and benzophenone derivatives as UV absorbers
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Page column 69, (2010/11/29)
Triazine, benzotriazole and benzophenone derivatives which are substituted or bridged with polyoxyalkylene groups, according to claim1,and their use as UV absorbers, especially in photographic materials, in inks, including inkjet inks and printing inks, in transfer prints, in paints and varnishes, organic polymeric materials, plastics, rubber, glass, packaging materials, in sunscreens of cosmetic preparations and in skin protection compositions.
