Chlormethylchlorphosphane mit sperrigen Substituenten -Synthese und reduktive Enthalogenierung mit Fe2(CO)9 / Bulky Chloromethylchlorophosphines -Syntheses and Reductive Dehalogenation with Fe2 (CO)9
作者:Jörg Fischer、Peter Machnitzki、Othmar Stelzer
DOI:10.1515/znb-1997-0801
日期:1997.8.1
prepared by treatment of Cl2P-CH2-Cl with organolithium compounds RLi (R = 2,4,6-R′3C6H2) or Grignard reagents RMgX (R = C6H11, sec-C4H9). For the less bulky phenyl derivative Ph(Cl)P-CH2-Cl (1i) a protected group two stage synthesis has been developed employing Et2N(Cl)P-CH2-Cl as an intermediate. Si-N cleavage reactions between Cl2P-CH2-Cl and R2N-SiMe3 or nucleophilic substitution with Ph2NH yield the amino
氯甲基氯膦 R(Cl)P-CH2-Cl (R = C6H11, sec-C4H9, 2,4,6-R'3C6H2; R' = tBu, iPr) 与庞大的取代基 (1a - 1d) 已通过处理Cl2P-CH2-Cl 与有机锂化合物 RLi (R = 2,4,6-R'3C6H2) 或格氏试剂 RMgX (R = C6H11, sec-C4H9)。对于体积较小的苯基衍生物 Ph(Cl)P-CH2-Cl (1i),已开发出使用 Et2N(Cl)P-CH2-Cl 作为中间体的受保护基团两步合成。Cl2P-CH2-Cl 和 R2N-SiMe3 之间的 Si-N 裂解反应或与 Ph2NH 的亲核取代产生氨基衍生物 R'2N(Cl)P-CH2-Cl (R' = Ph, Et, iPr) (1e, 1g, 1 小时)。氯甲基溴膦 R(Br)P-CH2-Cl (R = Br, C6H11) 是通过在 1 和 1a