Chirally deuterated benzyl chlorides from benzyl alcohols via hexachloroacetone/polymer-supported triphenylphosphine: synthesis of protected (2<i>S</i>, 3<i>S</i>)-[3-<sup>2</sup>H,<sup>15</sup>N]-tyrosine
作者:Derek W. Barnett、Maryanne S. Refaei、Robert W. Curley
DOI:10.1002/jlcr.3004
日期:2013.1
Chirally deuterated benzyl chlorides were prepared using novel, general hexachloroacetone/polymer-supported triphenylphosphine treatment of chirally deuterated benzyl alcohols. Doubly labeled protected tyrosine was obtained in 62% yield with 86% de at the α-carbon and 82% de at the β-carbon. Key in the synthesis was the alkylation of (15)N-labeled (-)-8-phenylmenthylhippurate with R-(-)-4-triisopr
手性氘代苄基氯是使用新颖的、通用的六氯丙酮/聚合物负载的三苯基膦处理手性氘代苄醇制备的。双标记的受保护酪氨酸以 62% 的产率获得,α-碳为 86% de,β-碳为 82% de。合成的关键是 (15)N-标记的 (-)-8-苯基马尿酸与 R-(-)-4-三异丙基甲硅烷氧基苄基-α-d 氯化物的烷基化。