6972-79-8Relevant articles and documents
Characterization of hydrazine derivative: Proposed decomposition mechanism and structure elucidation of decomposition compounds
Nemoto, Takayuki,Lazoura, Eliada,Nomoto, Takashi
, p. 346 - 350 (2003)
Decomposition of protected hydrazine diol (1) hemi-oxalate, a key intermediate of the potent indolocarbazole-based DNA topoisomerase I inhibitor (2), was investigated. Spectroscopic analysis revealed that the main decomposition compounds of the hydrazine
Selective catalytic oxidation of diglycerol
Wang, Huan,Vu, Nam Duc,Chen, Guo-Rong,Métay, Estelle,Duguet, Nicolas,Lemaire, Marc
supporting information, p. 1154 - 1159 (2021/02/26)
The selective oxidation of α,α-diglycerol was studied using oxygen as a clean oxidant in the presence of a palladium/neocuproine complex. After optimization of the reaction parameters, the mono-oxidation product was obtained with 93% NMR yield (up to 76% isolated yield). The product was named “diglycerose” considering that it mainly exists as a cyclic hemi-ketal form.
The role of mesoporosity and Si/Al ratio in the catalytic etherification of glycerol with benzyl alcohol using ZSM-5 zeolites
Gonzalez-Arellano, Camino,Grau-Atienza, Aida,Serrano, Elena,Romero, Antonio A.,Garcia-Martinez, Javier,Luque, Rafael
, p. 40 - 45 (2015/06/08)
A comparative study of the influence of three different acid solids as catalysts (conventional zeolites Z15c with Si/Al = 19.5 and Z40c with Si/Al = 48.2, and a hierarchical zeolite Z40c-H with Si/Al = 50.0) for the etherification of glycerol with benzyl alcohol was performed. The catalytic activity and selectivity of these zeolites was elucidated at different catalyst contents. Three different ethers (3-benzyloxy-1,2-propanediol, which is a mono-benzyl-glycerol ether (MBG) and 1,3-dibenzyloxy-2-propanol, which is a di-benzyl-glycerol ether (DBG) and dibenzyl ether (DBz) were identified as the main products. MBG was the major product of the reaction catalyzed by the microporous Z15c zeolite with low Si/Al molar ratio, whereas DBG was formed in higher yield with the use of microporous Z40c and hierarchical Z40c-H zeolites, both of them having a similar high Si/Al molar ratio (≈50 MBG is a value-added product andit is obtained with good yield and selectivity when using the conventional zeolite Z15c as a catalyst.Under the best conditions tested, i.e., 25 mg of catalyst for 8 h at 120°C, a 62% of conversion was obtainedwithout the need of solvent, with an excellent 84% selectivity toward the MBG and no formation of DBz.