Mc. Bonnet et al., CARBONYLATION - 6 - REGIOSELECTIVE SYNTHESIS OF 3-PHENYLPROPIONIC ACID AND DERIVATIVES BY CATALYTIC CARBONYLATION OF BENZYLIC SUBSTRATES, Comptes rendus de l'Academie des sciences. Serie IIc, Chimie, 1(10), 1998, pp. 603-607
Catalytic carbonylation of benzylic eaters, ethers or alcohols in the
presence of [Pd(PPh3)(2)Cl-2] and HBF4. OEt2 as co-catalyst affords 3-
phenylpropionic acid or eaters with good yields and selectivities. It
is shown that the reaction proceeds smoothly in methanol through the i
ntermediary of the corresponding l-phenylethyl methyl ether. (C) Acade
mie des sciences/Elsevier, Paris.