Journal of Organic Chemistry p. 3292 - 3303 (1989)
Update date:2022-07-30
Topics:
Murahashi, Shun-Ichi
Taniguchi, Yuki
Imada, Yasushi
Tanigawa, Yoshio
Palladium(0)-catalyzed reaction of allyl esters such as phosphates, carbonates, and carboxylates with sodium azide gives allyl azides.The azidation proceeds with retention of configuration at the allylic carbon.Optically active (R)-(E)-(+)-4-phenyl-3-buten-2-yl azide (19) is obtained from (R)-(E)-(+)-4-phenyl-3-buten-2-yl acetate (18) stereoselectively.Sequential substitution of (Z)-4-acetoxy-2-buten-1-yl diethyl phosphate (24) with nucleophiles and subsequently azide ion gives (E)-4-substituted-2-buten-1-yl azides 27.The reaction of allyl azides with triphenylphosphine gives iminotriphenylphosphoranes, which are versatile synthetic intermediates of primary allylamines, N-allylamines, and N-allylamides.Treatment of allyl azides with triphenylphosphine and subsequently with aqueous ammonium solution gives primary allylamines.Other synthetic applications of allyl azides are also described.
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