118017-15-5Relevant articles and documents
Lipase-catalyzed monoprotection of 1,4-diols in an organic solvent using vinyl benzoate as acyl transfer agent
Ciuffreda, Pierangela,Casati, Silvana,Santaniello, Enzo
, p. 3663 - 3665 (2003)
Lipase from Mucor miehei (MML) has been selected as the most suitable enzyme to catalyze the efficient monobenzoylation of 1,4-diols using vinyl benzoate as acyl transfer reagent in tert-butyl methyl ether. The regioselectivity of the monobenzoylation of
Total syntheses of melodienones by redox isomerization of propargylic alcohols
Dong, Chunmao,Peng, Weiwei,Wang, Huan,Zhang, Xiao,Zhang, Jun,Tan, Guishan,Xu, Kangping,Zou, Zhenxing,Tan, Haibo
supporting information, p. 5077 - 5081 (2021/06/21)
A remarkable base-promoted methodology for the rapid construction of the (E)- and (Z)-γ-oxo-α,β-alkenoic ester skeletons from readily accessible vinyl propargylic alcohols through modified redox isomerization was uncovered. This approach manifested its hi
Synthesis and Evaluation of Ruthenium 2-Alkyl-6-mercaptophenolate Catalysts for Olefin Metathesis
Wang, Tao,Yu, Xiaobo,Zhang, Huiqing,Wu, Shutao,Guo, Weijie,Wang, Jianhui
, (2019/04/30)
A series of ruthenium carbene catalysts containing 2-sulfidophenolate bidentate ligand with an ortho-substituent next to the oxygen atom were synthesized. The molecular structure of ruthenium carbene complex containing 2-isopropyl-6-sulfidophenolate ligand was confirmed through single crystal X-ray diffraction. An oxygen atom can be found in the opposite position of the N-heterocyclic carbene (NHC) based on the steric hindrance and strong trans-effects of the NHC ligand. The ruthenium carbene catalyst can catalyze ring-opening metathesis polymerization (ROMP) reaction of norbornene with high activity and Z-selectivity and cross metathesis (CM) reactions of terminal alkenes with (Z)-but-2-ene-1,4-diol to give Z-olefin products (Z/E ratios, 70:30–89:11) in low yields (13%–38%). When AlCl3 was added into the CM reactions, yields (51%–88%) were considerably improved and process becomes highly selective for E-olefin products (E/Z ratios, 79:21–96:4). Similar to other ruthenium carbene catalysts, these new complexes can tolerate different functional groups.
