substituted benzylic manganese chlorides were prepared by insertion of magnesium turnings in the presence of MnCl2·2LiCl in THF at −5 °C within 2 h. These benzylic manganese reagents underwent smooth cross-couplings with various functionalized alkenyl iodides, bromides, and triflates or iodoacrylates in the presence of 10 mol % FeCl2 at 25 °C for 1–12 h. Mechanistic studies showed that benzylic manganese
(E)-1-Bromo-3,3-diethoxy-1-propene (diethyl acetal of 3-bromoacrolein). A versatile synthon for the synthesis of furans, butenolides, and (Z)-allyl alcohols
作者:A. I. Meyers、Ronald F. Spohn
DOI:10.1021/jo00224a044
日期:1985.11
MEYERS, A. I.;SPOHN, R. F., J. ORG. CHEM., 1985, 50, N 24, 4872-4877