ChemInform Abstract: THE REACTION OF HETEROAROMATIC AMINE OXIDES WITH TITANIUM CHLORIDE (TICL4)/SODIUM BOROHYDRIDE (NABH4)reduction, hydrogenationpyridine derivativesPicolin-N-oxide und 2,6-Dimethyl-pyridin-N-oxid (Ia)-(Id) werden mit Natriumborailat und TiCl 4 zu den entsprechenden Pyridinen (...
48、chlorides The acyl chlorides are effi ciently reduced to the cor- responding alcohols on reaction with Zn(BH4)2in pres- ence of TMEDA (Eq. (47) 50. Electron withdrawing group in the substrates enhances the rate of reduction. It is of interest to note that the selective reduction of ...
The Reaction of Heteroaromatic Amine Oxides with TiCl4/NaBH4 Nitramarine (1), which possesses a 尾-carboline nucleus, was synthesized by two routes. First, we applied an intramolecular thermal cyclization of the 1-azahexatrienesystem in heteroaromatics such as 2. Although no intermediate (9 or ...
ChemInform Abstract: Reaction of InCl3 with Various Reducing Agents: InCl3—NaBH4-Mediated Reduction of Aromatic and Aliphatic Nitriles to Primary Amines. Reaction of InCl3 with Various Reducing Agents: InCl3-NaBH4-Mediated Reduction of Aromatic and Aliphatic Nitriles to Primary Amines. Jaime Z. Sa...
(supported Ag NPs, anisotropic Ag NPs and bimetallic Ag NPs) are highlighted for the 4-NP reduction, including the catalytic mechanism and reaction rate caused by their adjustments in size and shape. Although high catalytic activity has been demonstrated by several Ag-based NPs catalysts, further...
of carbonyl compounds under mild reaction conditions (as low as 90 °C in a short time of 1 h), especially of ethyl levulinate to γ -... L Hu,T Yang,F Zhen - 《Applied Catalysis B Environmental》 被引量: 4发表: 2018年 加载更多来源...
Reaction of amides with NaBH4-I2 system in THF gives the corresponding amines in 70–76% yields. Reduction of nitriles yields the corresponding amines in 70–75% yields. The I2/NaBH4 system is useful in the hydrocarboration of olefins and the corresponding alcohols are obtained in 78–92%...
While no reaction occurs in a series of dry apro vents (dichloromethane, diethyl ether, hexane, or benzene), to our pleasure, we fou the treatment of 1a with NH3BH3 (0.4 molar equivalent) or NaBH4 (0.3 molar equi in MeOH for 15 min at room temperature resulted in the quantitative ...
The reaction could be described as a substitution process of [OH]− through the [H]− from the produced intermediate MgH2. During the substitution process, a side reaction may happen. [B3H8]− was generated and then may react with MgH2 and Na+ to form another part of NaBH4 [82]....
As shown in Table 1, under the conditions of 0 °C for the CH3OH addition temperature and 25 °C for the reaction temperature, (Z)-6a was completely converted after 3 h to give (R)-7a with a 99:1 er without formation of 8a (entry 1). No change was observed when the ...