Allylsilylation and stannylation of 1,2-diketones using bifunctional allylsilane–allylstannane reagents via photoinduced electron transfer reaction
作者:Akio Takuwa、Hiroyuki Saito、Yutaka Nishigaichi
DOI:10.1039/a906620i
日期:——
Bifunctional allylsilaneâallylstannane and allylstannaneâallylstannane reagents react photochemically with 1,2-diketones to give α-ketohomoallyl alcohols having an allylsilane moiety and α-ketohomoally alcohols having an allylstannane moiety respectively in excellent yields, and the remaining allylstannane moiety further reacts effectively with another diketone in the presence of Mg(ClO4)2 to afford a bis-α-ketohomoallyl alcohol.
双功能烯丙基硅烷烯丙基锡烷试剂和烯丙基锡烷烯丙基锡烷试剂与 1,2-二酮发生光化学反应,分别生成具有烯丙基硅烷分子的 δ±-酮醇和具有烯丙基锡烷分子的 δ±-酮醇,收率极高、剩余的烯丙基锡分子在 Mg(ClO4)2 的存在下与另一种二酮进一步发生有效反应,生成双δ-酮高烯丙基醇。