LaIII-Induced Addition of Tetrahydrofurfuryl Alcohol, Tetrahydropyran-2-ylmethanol, D-Gluconate, Methanol and Ethanol to Maleate.
摘要:
La-IIII-mediated Michael-type addition of tetrahydrofurfuryl alcohol (thfa) and tetrahydropyran-2-ylmethanol (thpm) to maleate 1, to form the corresponding alkoxybutanedioic acids in high yields (>89%) is described. Small amounts (<5%) of the products from competitive addition of water were formed when hydrated salts were used. Larger amounts of water interfere with this reaction. The extension of this reaction to D-gluconate 3, methanol and ethanol, to prepare 2-[(D-gluconate)-2-O-yl]butanedioate 4, methoxybutanedioic acid 2e and ethoxy-butanedioic acid 2f, has also been achieved.
Ligand-Directed Control over Crystal Structures of Inorganic-Organic Frameworks and Formation of Solid Solutions
作者:Hamish H.-M. Yeung、Wei Li、Paul J. Saines、Thomas K. J. Köster、Clare P. Grey、Anthony K. Cheetham
DOI:10.1002/anie.201300440
日期:2013.5.17
Grounded in fact: Inorganic–organicframeworks with 3D Li–O–Li connectivity can form solidsolutions through mechanochemical synthesis. High‐resolution synchrotron powder X‐ray diffraction and cross‐polarization solid‐state NMR spectroscopy demonstrate complete ligand mixing in the resulting binary and ternary systems (see picture for trends in unit cell volume (V) of the ternary system Li2(suc)x(mal)y(met)z}n)
LaIII-Induced Addition of Tetrahydrofurfuryl Alcohol, Tetrahydropyran-2-ylmethanol, D-Gluconate, Methanol and Ethanol to Maleate.
作者:E. G. K. Quartey、J. A. Peters、H. van Bekkum、T. Anthonsen、Ryszard Gawinecki、Günter Häfelinger、Muhammed Nour Homsi、Frank K. H. Kuske、Monika Haugg、Nathalie Trabesinger-Rüf、Elmar G. Weinhold
DOI:10.3891/acta.chem.scand.50-0825
日期:——
La-IIII-mediated Michael-type addition of tetrahydrofurfuryl alcohol (thfa) and tetrahydropyran-2-ylmethanol (thpm) to maleate 1, to form the corresponding alkoxybutanedioic acids in high yields (>89%) is described. Small amounts (<5%) of the products from competitive addition of water were formed when hydrated salts were used. Larger amounts of water interfere with this reaction. The extension of this reaction to D-gluconate 3, methanol and ethanol, to prepare 2-[(D-gluconate)-2-O-yl]butanedioate 4, methoxybutanedioic acid 2e and ethoxy-butanedioic acid 2f, has also been achieved.
Comprehensive comparisons of crystal structure, Hirshfeld surface and thermochemical properties of two succinic acid metal complexes [LiC2H2O2]2(s) and [NaC2H2O2·3H2O]2(s)
作者:Qing-Wei Li、Zeng-Bo Ke、Xi Han、Wen-Wen Zhong、Yu-Xia Kong、You-Ying Di
DOI:10.1016/j.inoche.2023.111747
日期:2024.1
In this work, two aqueous and nonaqueous metal complexes of succinic acid were synthesized, namely Li-succinate (CCDC: 2284044) and hexahydrate Na-succinate (CCDC: 2296979). Their crystal structures were determined by single crystal X-ray crystallography. The Li-succinate crystallizes in trigonal space group and the hexahydrate Na-succinate in triclinic . The Hirshfeld surfaces and the corresponding