30833-53-5Relevant articles and documents
Palladium-Catalyzed Carboxylate-Assisted Ethoxycarboxylation of Aromatic Acids to Synthesize Monoethyl Phthalate Derivatives with Ethyl Bromodifluoroacetate
Tao, Na,Wang, Jie,Yuan, Chunchen,Zeng, Runsheng,Zhao, Ying-Sheng
, p. 8607 - 8610 (2019/11/03)
A novel and efficient approach for direct carbonation of aromatic acids with ethyl bromodifluoroacetate as the carbonyl source is reported. A broad range of substrates bearing various functional groups were tolerated, leading to monoalkyl phthalate derivatives in moderate to good yields.
Practical selective monohydrolysis of bulky symmetric diesters: Comparing with sonochemistry
Shi, Jianjun,Zhao, Tian,Niwayama, Satomi
, p. 6815 - 6820 (2018/10/20)
The conditions of the practical selective monohydrolysis of symmetric diesters we previously reported have been modified and applied to selective monohydrolysis of bulky symmetric diesters. While ultrasound is generally considered effective for two-phase reactions, its effect actually turned out to be rather marginal. Instead, use of a larger proportion of a polar aprotic co-solvent, DMSO, and aqueous KOH helped enhance the reaction rates and improve the yields of the half-esters. The reactions are simple, mild and practical without special devices.
Ecotoxicity and biodegradation of phthalate monoesters
Scholz, Norbert
, p. 921 - 926 (2007/10/03)
Little is known about the fate and the effects of phthalic acid monoesters. Various of these monoesters ranging from n-butyl to isononyl monoester have been evaluated in respect to their biodegradation behaviour and their acute aquatic toxicity. All esters are readily biodegradable, achieving degradation rates of 90% and more. The acute toxicity values strongly depend on the carbon chain length of the alcohol moiety. The short chain specimen have LC/EC 50 around and above 100 mg/l, with values levelling off to around 30 mg/l for the isononyl monoester.
