A series of allyl bromides 3a-c bearing a stereogenic carbon substitue
nt at C-2 are synthesised in four steps from methyl acrylate. These ar
e found to react with aldehydes, mediated by chromium(ll) chloride, to
furnish syn-4-alkoxyalkan-1-ols 4 in good to excellent diastereoselec
tivity. Copyright (C) 1996 Elsevier Science Ltd