中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-氯-N,N-二(苯基甲基)-乙酰胺 | N,N-dibenzyl-2-chloroacetamide | 2567-51-3 | C16H16ClNO | 273.762 |
N-苄基乙酰胺 | N-(phenylmethyl)acetamide | 588-46-5 | C9H11NO | 149.192 |
—— | 2-(dibenzylamino)propan-1-ol | 60448-81-9 | C17H21NO | 255.36 |
三苄胺 | tribenzylamine | 620-40-6 | C21H21N | 287.404 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
N-乙基二苄胺 | N,N-dibenzylethanamine | 10479-25-1 | C16H19N | 225.334 |
—— | N,N-dibenzylnitroacetamide | 1613073-76-9 | C16H16N2O3 | 284.315 |
—— | N,N-bis(4-nitrobenzyl)acetamide | —— | C16H15N3O5 | 329.312 |
—— | N,N-dibenzylcinnamamide | 119163-15-4 | C23H21NO | 327.426 |
—— | N,N-dibenzylbutan-2-amine | 858428-24-7 | C18H23N | 253.387 |
—— | N-acetyl-N-benzylbenzamide | 43008-66-8 | C16H15NO2 | 253.301 |
—— | N,N-dibenzyl-3-methylbutan-2-amine | 121238-76-4 | C19H25N | 267.414 |
—— | 1-Dibenzylamino-1-methylcyclopropan | 176209-20-4 | C18H21N | 251.371 |
—— | (E)-N,N-dibenzyl-3-(4-methoxyphenyl)prop-2-enamide | —— | C24H23NO2 | 357.452 |
A variety of acetamide derivatives are reduced in excellent yields to tertiary amines by PhMeSiH2 in the presence of Cp2TiX2 (X = F or Me) catalysts. The reactions are very clean at 80 °C. At room temperature a secondary reaction, hydrogenolysis of the C(O)N bond, intervenes and reduces the chemoselectivity. Nevertheless, this chemistry provides a simple methodology for the amide/alkylamine transformation using inexpensive, commercially available reagents.Key words: amides, reduction, secondary amides, methylphenylsilane, titanocene, catalysis.