Catalyst for the carbonylation of oxiranes

Details Catalyst for the carbonylation of oxiranes Catalyst for the carbonylation of oxiranes

2006-12-05

2006-12-05

Solola, Taofiq (Department: 1626)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07145022

ABSTRACT:
Lactones are prepared by catalytic carbonylation of oxiranes using a catalyst system comprisinga) at least one carbonylation catalyst A comprising uncharged or anionic transition metal complexes of metals of groups 5 to 11 of the Periodic Table of the Elements andb) at least one chiral Lewis acid B,with the exception of [(salph)Al(THF)2][Co(CO)4], as catalyst.

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