35583-08-5Relevant articles and documents
A green recyclable poly(4-vinylpyridine)-supported copper iodide nanoparticle catalyst for the chemoselective synthesis of pentaerythritol diacetals from aromatic aldehydes
Albadi, Jalal,Iravani, Nasir,Dehghan, Farzaneh,Shirinic, Farhad
, p. 610 - 611,2 (2020/09/16)
Poly(4-vinylpyridine)-supported copper(I) iodide nanoparticles have been used as an efficient, green recyclable catalyst for the chemoselective synthesis of pentaerythritol diacetals from aromatic aldehydes and pentaerythritol under solvent-free conditions. This catalyst was reused six times without any loss of its activity.
SO3H-functionalized ionic liquids as efficient and recyclable catalysts for the synthesis of pentaerythritol diacetals and diketals
Wang, Yuanyuan,Gong, Xinxin,Wang, Zhizhong,Dai, Liyi
experimental part, p. 7 - 16 (2010/07/09)
The efficient, simple and environmentally friendly synthesis of pentaerythritol diacetals and diketals using SO3H-functionalized ionic liquids (ILs) as catalysts was reported. The ILs showed high catalytic activities and reusabilities with good to excellent yields of the desired products. H0 (Hammett function) values and the minimum-energy geometries of SO3H-functionalized ILs were determined and the results revealed that the acidities and catalytic activities of ILs in acetalization were related to their structures. The IL [PSPy][OTf] with the shortest H-O bond distance had the strongest acidity and the highest catalytic activity in the synthesis of pentaerythritol diacetals and diketals.
Crystal X-ray diffraction guided NMR analysis of 3,9-diaryl-2,4,8,10- tetraoxaspiro[5.5]undecanes under differently shielding effect of terminal aromatic rings
Sun, Xiaoqiang,Yu, Shu-Ling,Li, Zheng-Yi,Yang, Yang
experimental part, p. 152 - 156 (2010/09/06)
The stereoscopic structures of 3,9-di(o-, m-and p-chlorophenyl)-2,4,8,10- tetraoxaspiro[5.5]undecanes were elucidated via high-resolution 1D and 2D NMR techniques including 1H NMR, 13C NMR, DEPT, 1H-1H COSY, HSQ
