Synthesis of ruthenium or osmium metathesis catalysts

摘要

The present invention relates to the synthesis of ruthenium and osmium carbene metathesis catalysts of the formula
or of the formula
by reacting unsaturated alkene or alkyne compounds with hydrogen containing ruthenium or osmium complexes as
and to the synthesis of certain of the hydrogen containing ruthenium or osmium complexes used in the synthetic methods mentioned above.