G. Cometti et al., COBALT-CATALYZED METHOXYCARBONYLATION OF NAPHTHALENE MONO-SULFONATES AND DI-SULFONATES TO NAPHTHALENE MONO-ESTERS AND DI-ESTERS, Journal of organometallic chemistry, 451(1-2), 1993, pp. 30000013-30000014
The methoxycarbonylation of naphthalene mono- and di-sulfonates under
mild reaction conditions catalyzed by cobalt complexes generated in si
tu from either [Co(CO)4]-/Me2SO4 or [Co(CO)4]-/Br-CH2COOEt is reported
.