Catalysts for nucleophilic substitution, synthesis thereof,...

Details Catalysts for nucleophilic substitution, synthesis thereof,... Catalysts for nucleophilic substitution, synthesis thereof,...

2007-05-15

2007-05-15

Sample, David (Department: 1755)

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

Organic compounds

Phosphorus containing

C564S012000, C502S162000, C502S167000

Reexamination Certificate

active

10472912

ABSTRACT:
The invention concerns novel catalysts for aromatic nucleophilic substitution. Said catalysts are compounds of the general formula (I), wherein: R1, R2, R3, R4, R5, and R6, identical or different, are selected among hydrocarbon radicals; the Pn's, advantageously the same, are selected among metalloid elements of column V of a period higher than nitrogen; Z is a metalloid element of column V, advantageously distinct from Pn; preferably a nitrogen (N, P, As, Sb). The invention is applicable to organic synthesis

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patent: 197 02 282 (1998-07-01), None
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