Process for producing saccharin, saccharin analogues or their sa

Details Process for producing saccharin, saccharin analogues or their sa Process for producing saccharin, saccharin analogues or their sa

1989-10-19

1991-07-23

Rivers, Diana

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548211, C07D27506

Patent

active

050345346

ABSTRACT:
This invention concerns a new process for the catalytic carbonylation of certain aryl halides or aryl tosylates to amides by use of a complex of palladium and at least one ligand. More specifically, the invention concerns carbonylation of halogenoaromaticsulfonamides or tosylatoaromaticsulfonamides to saccharin, saccharin analogues or their salts.

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Heck, "Palladium Reagents in Organic Synthesis," Academic Press, New York, pp. 352-353 (1985).
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Cacchi et al., Tetrahedron Letters, vol. 27, No. 33, pp. 3931-3934 (1986).
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