This invention relates to a recyclable palladacycle catalyst of formula
##STR00001## in which each is a single bond or a double bond, provided
that if one is a double bond, its neighboring is not a double bond;
each of X and Z, independently, is --P(R')--, --S--, --N(R')--, or
--N.dbd., in which R' is alkyl, aryl, cyclyl, heteroaryl, or
heterocyclyl; each of Y.sub.1 and Y.sub.2, independently, is an anion of
an organic or inorganic acid; each of X.sub.1, X.sub.2, X.sub.3, Z.sub.1,
Z.sub.2, and Z.sub.3, independently, is --C.dbd., --CR''--, in which R''
is H, alkyl, aryl, cyclyl, heteroaryl, or heterocyclyl; and each of
R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, and
R.sub.8, independently, is H, alkyl, aryl, cyclyl, heteroaryl, or
heterocyclyl, or R.sub.1, X, X.sub.1, and R.sub.2, together form a 3 8
membered ring, or R.sub.2, X.sub.1, X.sub.2, and R.sub.3, together form a
3 8 membered ring, or R.sub.3, X.sub.2, X.sub.3, and R.sub.4, together
form a 3 8 membered ring, or R.sub.5, Z, Z.sub.1, and R.sub.6, together
form a 3 8 membered ring, or R.sub.6, Z.sub.1, Z.sub.2, and R.sub.7,
together form a 3 8 membered ring, or R.sub.7, Z.sub.2, Z.sub.3, and
R.sub.8, together form a 3 8 membered ring; provided that one of R.sub.1,
R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, and R.sub.8, or the
ring formed from R.sub.1, X, X.sub.1, and R.sub.2, or the ring formed
from R.sub.2, X.sub.1, X.sub.2, and R.sub.3, or the ring formed from
R.sub.3, X.sub.2, X.sub.3, and R.sub.4, or the ring formed from R.sub.5,
Z, Z.sub.1, and R.sub.6, or the ring formed from R.sub.1, Z.sub.1,
Z.sub.2, and R.sub.7, or the ring formed from R.sub.7, Z.sub.2, Z.sub.3,
and R.sub.8 is connected to a first polymer.Also included in this
invention are a method of promoting a coupling reaction using the
above-described palladacycle compound and a method of making it.
