These reductions did not occur unless LiCl was present, illustrating the electron releasing effect of the three methoxy functions which reduce the carbonyl group's reactivity.doi:10.1081/SCC-120018935Hua-Jie ZhuCharles U. Pittman JrTaylor & Francis GroupCheminform...
2、ral Uni6ersity PO, Hyderabad500 046, India Received 29 February 2000; received in revised form 16 April 2000 Abstract NaBH4does not reduce carboxylic acids, esters, amides and nitriles under ambient conditions. However, the reactivity of NaBH4can be enhanced by the addition of certain additi...
In practice, this reaction is usually performed in an alcoholic solvent like CH3OH and the reaction is quenched with a mild acid such as a saturated solution of ammonium chloride (NH4Cl) 4. NaBH4Will Not Reduce Esters or Amides NaBH4will not generally reduce esters or amides. (Note 2). (T...
then acid is added and a second reaction occurs. borane is not generated under the reaction conditions.see here for more information on why borohydride does not reduce carboxylic acids.http://www.chemicalforums.com/index.php?topic=27725.msg105062#msg105062 Logged Knowing why you got a question...
These reductions did not occur unless LiCl was present, illustrating the electron releasing effect of the three methoxy functions which reduce the carbonyl group's reactivity.Hua-Jie Zhu & Charles U. Pittman Jr.University/Industry Chemical Research CenterSynthetic Communications...
Zhou Y, Gao G, Li H, Qu J (2008) A convenient method to reduce hydroxyl-sub- stituted aromatic carboxylic acid with NaBH4/Me2SO4/B(OMe)3. Tetrahe- dron Lett 49(20):3260-3263. https://doi.org/10.1016/j.tetlet.2008.03.078...
A convenient method to reduce hydroxyl-substituted aromatic carboxylic acid with NaBH4 /Me2 SO4/B (OMe) 3[J].Tetrahedron Letters,2008.3260.Zhou Y H,Gao G C,Li H,Qu J P.A convenient method to reduce hydroxyl-substituted aromatic carboxylic acid with NaBH4/Me2SO4/B (OMe)3.Tetrahedron ...
A Convenient Method to Reduce Hydroxyl-Substitued Aromatic Carboxylic Acid with NaBH4/Me2SO4/B (OMe)3. Y. Zhou,G. Gao,H. Li,J. Qu. Tetrahedron Letters . 2008Zhou Y H, Gao G C,Li H,et al. A convenient method to reduce hydroxyl-substituted aromatic carboxylic acid with NaBH4 /Me2 ...
Zhou Y, Gao G, Li H, Qu J (2008) A convenient method to reduce hydroxyl-sub- stituted aromatic carboxylic acid with NaBH4/Me2SO4/B(OMe)3. Tetrahe- dron Lett 49(20):3260-3263. https://doi.org/10.1016/j.tetlet.2008.03.078...
Zhou Y, Gao G, Li H, & Qu J (2008) A convenient method to reduce hydroxyl-substituted aromatic carboxylic acid with NaBH4/Me2SO4/B(OMe)3. Tetrahedron letters 49(20):3260-3263.Zhou Y H,Gao G C,Li H. A convenient method to reduce hydroxyl-substituted aromatic carboxylice acid with ...