BH3-THF络合物 体系反应 1,3-Di(hydroxymethyl)-2-nitrobenzene: 1,3-Dicarboxylic acid-2-nitrobenzene (2.50 g, 11.8 mmol) was dissolved in THF (12.5 mL) and cooled with an ice bath. 1M Borane-THF (59.0 mL, 59.0 mmol) was then added dropwise and the reaction was stirred for 48 hours. ...
Starting with H 2 Ru 4 (CO) 13 only a small amount of the butterfly cluster (III) (space group Cm, Z=2) is obtained besides (I); however, (I) leads to 60% of (III) in addition to a Ru carbide cluster and unidentified products....
Part 40. Ring Transformation of 4-Alkoxypyrimidine 1-Oxides by Reaction with Diketene reaction with diketene gave 7-acetyl-4-alkoxy-2-methylisoxazolo[4, 5-c]pyridines and 7-acetyl-4-alkoxy-3-methyloxazolo[4, 5-c]pyridines, ... H Yamanaka,S Niitsuma,M Sakai,... - 《Cheminform》 被引...
The novel arachno-2-tungstametallaborane, [WH 3(PMe 3) 3B 3H 8[, has been made in high yield (>90%) by the reaction of the monoborane BH 3·THF (THF = tetrahydrofuran) with [WH 6(PMe 3) 3]. This represents a controlled transition metal mediated synthesis of a higher borane moie...
1. propene + BH3 x THF 2. the product from above + H2O2/OH- Hydroboration Oxidation Hydroboration Oxidation is a very useful reaction to introduce OH group at a specific position This reaction is regioselective in nature. The reaction takes place acco...
The reaction of Me 2 P-NMe2 with BH 3 ·THF is investigated as a function of temp. and time for mol ratios of 1:0.5 to 1:3.0.doi:10.1002/chin.198723211KANJOLIA, R. K.WATKINS, C. L.KRANNICH, L. K.WILEY‐VCH Verlag GmbHCheminform...
- The reaction involves propyne (CH₃C≡CH) with BH₃ in THF followed by oxidation with H₂O₂ and OH⁻. - This process is known as hydroboration-oxidation, which follows the anti-Markovnikov rule. - In this reaction, the boron adds to the less substituted carbon, resulting in ...
The synthesis of 1,3,2-thiazaborolidine and 2,3-dihydro-2,1,3-borathiazolidines from reaction of ephedrine disulfide and 3,4-dimethyl-5-phenyl-1,3-thiazolidine-2-thione with BH3-THF is reported. The two reactions afforded optically active borohydride heterocycles. The X-ray diffraction stru...
Role of NaBH4 stabilizer in the oxazaborolidine-catalyzed asymmetric reduction of ketones with BH3-THF nonselective borane reduction of ketones, effectively competing with enantioselective MeCBS reduction of ketones, lowering the overall selectivity of the reaction... SM Nettles,K Matos,ER Burkhardt,.....
The conformations and spectroscopic properties of the adducts are discussed. The reactions of 1 and 7 with BY3·THF lead to the six-membered boron heterocycles 5,5-dimethyl-1,3-dithia-5-azonia-4-boratacyclohexane (5), 4,4-dideuterio-5-methyl-5[D1]methyl-1,3-dithia-5-azonia-4-...