2142-68-9Relevant articles and documents
-
Forbes,Mueller
, p. 488,498 (1957)
-
V2O5 anchored RuO2: An efficient nanocatalyst for aerial oxidation of alcohols
Ganesh Babu,Krishnamoorthi,Thiruneelakandan,Karvembu
, p. 1245 - 1252 (2014)
RuO2/V2O5 nanocatalyst has been prepared from Ru(acac)3 and V2O5 by a simple dry synthesis for the first time. The formation of RuO2/V 2O5 nanocatalyst was confirmed by XRD and FT-IR analyses. Morphology and size of the nanocatalyst were found using SEM and TEM respectively. SEM-EDS analysis was carried out to know the weight percentage of Ru in the catalyst. Thermal stability of the catalyst was found using TG/DTA analysis. Further, RuO2/V2O5 was found to be an efficient catalyst for the aerial oxidation of alcohols to their corresponding carbonyl compounds. Moreover, very low Ru content (0.36 mol%) was exploited for this conversion, nevertheless very high turnover number was observed. The use of recyclable nanocatalyst and atmospheric oxygen as oxidant made the system interesting from the green chemistry point of view.
An efficient and scalable room temperature aerobic alcohol oxidation catalyzed by iron chloride hexahydrate/mesoporous silica supported TEMPO
Wang, Lianyue,Li, Jun,Zhao, Xiaoping,Lv, Ying,Zhang, Hengyun,Gao, Shuang
, p. 6041 - 6045 (2013)
An efficient room temperature catalytic system FeCl3· 6H2O/SBA-15-TEMPO/NaNO2 for the oxidation of alcohols with dioxygen or air as terminal oxidant has been developed. Various alcohols were oxidized at a low catalyst loading (0.1-1 mol %) to the corresponding carbonyl compounds in good to excellent yields. For the oxidation of benzyl alcohol, the excellent turn-over frequency (TOF) of 81.4 h-1 was achieved (turn-over number (TON) up to 9770). The catalyst SBA-15-TEMPO can be reused for 10 reaction runs without significant loss of catalytic activity. In addition, the two components FeCl3·6H2O and SBA-15-TEMPO can also be reused for at least four reaction runs without appreciable loss of catalytic activity. In the case of large-scale experiment for the oxidation of benzyl alcohol, the desired product benzaldehyde was obtained in 94.5% yield.
-
Rogers
, p. 2784,2786 (1956)
-
Highly ordered mesoporous hybrid silica functionalized with ionic liquid framework supported copper and its application in the oxidation of alcohols
Rajabi, Fatemeh,Bahrami, Nazli,Vessally, Esmail,Luque, Rafael
, (2021/10/27)
A highly ordered organic-inorganic hybrid nanomaterial containing copper N-heterocyclic carbene complex (Cu-NHC@Pyrm-OMS) was synthesized and characterized using various techniques including FTIR, MAS NMR, XRD, TGA, SEM, and TEM. Cu-NHC@Pyrm-OMS nanomaterial is highly efficient heterogeneous system towards the selective oxidation of primary and secondary alcohols to corresponding aldehydes and ketones under mild conditions. Moreover, the supported copper nanocatalyst exhibited outstanding stability and could be reused at least ten times, remaining almost unchanged from initial activity. This work has focused on sustainable and green chemistry that use recoverable nanocatalyst, clean oxidant and aqueous media.
Ruthenium(II) Complexes Bearing Schiff Base Ligands for Efficient Acceptorless Dehydrogenation of Secondary Alcohols?
Dong, Qing,Feng, Qi,Han, Zhangang,Hao, Zhiqiang,Lin, Jin,Liu, Kang,Lu, Guo-Liang,Ma, Dongzhu
, p. 121 - 128 (2020/12/25)
Four ruthenium(II) complexes 1—4 [RN=CH-(2,4-(tBu)2C6H2O)]RuH(PPh3)2(CO) (R = C6H5, 1; R = 4-MeC6H4, 2; R = 4-ClC6H4, 3; R = 4-BrC6H4, 4) bearing Schiff base ligands were prepared by treating RuHClCO(PPh3)3 with RN=CH-(2,4-(tBu)2C6H2OH (L1—L4) in the presence of triethylamine. Their structures were fully characterized by elemental analysis, IR, NMR spectroscopy and X-ray crystallography. These Ru(II) complexes exhibit high catalytic performance and good functional-group compatibility in the acceptorless dehydrogenation of secondary alcohols, affording the corresponding ketones in 82%—94% yields.
Iron-catalyzed domino decarboxylation-oxidation of α,β-unsaturated carboxylic acids enabled aldehyde C-H methylation
Gong, Pei-Xue,Xu, Fangning,Cheng, Lu,Gong, Xu,Zhang, Jie,Gu, Wei-Jin,Han, Wei
supporting information, p. 5905 - 5908 (2021/06/18)
A practical and general iron-catalyzed domino decarboxylation-oxidation of α,β-unsaturated carboxylic acids enabling aldehyde C-H methylation for the synthesis of methyl ketones has been developed. This mild, operationally simple method uses ambient air as the sole oxidant and tolerates sensitive functional groups for the late-stage functionalization of complex natural-product-derived and polyfunctionalized molecules.
