Catalytic Removal of <i>N</i>-Allyloxycarbonyl Groups Using the [CpRu(IV)(π-C<sub>3</sub>H<sub>5</sub>)(2-quinolinecarboxylato)]PF<sub>6</sub> Complex. A New Efficient Deprotecting Method in Peptide Synthesis
N-allylation from the corresponding N-allyloxycarbonyl (N-AOC) compounds by using a catalytic amount of [CpRu(IV)(π-C3H5)(2-quinolinecarboxylato)]PF6 in the presence of 1 molar amount of trifluoromethanesulfonic acid, the general utility of which has been demonstrated by the efficient synthesis of a collagen protein unit tripeptide, Pro-Pro-Gly.
通过使用催化量的[CpRu(IV)(π-C),即使在空间上要求不高且亲核性很高的仲胺等各种胺也无需从相应的N-烯丙氧羰基(N -AOC)化合物上脱羧化N-烯丙基化,即可有效地脱保护。在1摩尔量的三氟甲磺酸存在下的3 H 5)(2-喹啉羧基甲酰基)] PF 6,其一般用途已经通过有效合成胶原蛋白单元三肽Pro-Pro-Gly得到了证明。