Polymer-supported Lewis acid catalyst

Details Polymer-supported Lewis acid catalyst Polymer-supported Lewis acid catalyst

2005-07-12

2005-07-12

La Villa, Michael (Department: 1775)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

C502S102000, C502S109000, C502S122000, C502S168000, C502S216000, C502S217000, C502S302000, C526S091000

Reexamination Certificate

active

06916761

ABSTRACT:
In order to provide a novel Lewis acid catalyst, which shows high reaction activity in aqueous medium, is easily recovered, and is excellent in reusability, a Lewis acid group expressed by the general formula (I):in-line-formulae description="In-line Formulae" end="lead"?MXn  (I)in-line-formulae description="In-line Formulae" end="tail"?(wherein M represents a polyvalent element, X represents an anionic group, and n is an integer representing the valence of M)is linked and supported on a polymer membrane via an SO3or SO4group.

REFERENCES:
patent: 5414177 (1995-05-01), Chung et al.
patent: 6034290 (2000-03-01), Harmer et al.
patent: 6197715 (2001-03-01), Bansleben et al.
patent: 6281309 (2001-08-01), Babcock et al.
patent: 9-262479 (1997-10-01), None
patent: 10-24234 (1998-01-01), None
patent: 10-230166 (1998-09-01), None
patent: 11-244705 (1999-09-01), None

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