B(C6F5)3-Promoted Tandem Silylation and Intramolecular Hydrosilylation: Diastereoselective Synthesis of Oxasilinanes and Oxasilepanes
摘要:
B(C6F5)(3) promotes regio- and stereoselective cyclizations of unsaturated alkoxysilanes to generate oxasilinanes and oxasilepanes. The same products are available directly from alkenols via tandem silylation and hydrosilylation.
Iridium-Catalyzed Carbonyl Allylations by Allylic Alcohols with Tin(II) Chloride
作者:Yoshiro Masuyama、Toshiya Chiyo、Yasuhiko Kurusu
DOI:10.1055/s-2005-872255
日期:——
Iridium complex [IrCl(cod)] 2 can function as a catalyst for the allylation of aldehydes and ketones by allylicalcohols upon addition of an equimolar amount of SnCl 2 in THF-H 2 O; the reaction is carried out between roomtemperature and 50 °C to give the corresponding homoallylic alcohols.
铱络合物[IrCl(cod)] 2 可作为烯丙醇烯丙基化醛和酮的催化剂,在THF-H 2 O中加入等摩尔量的SnCl 2 ;反应在室温和 50 °C 之间进行,得到相应的高烯丙醇。