Daryl A Allen

US Patent:

20130261312, Oct 3, 2013

Filed:

Jun 4, 2012

Appl. No.:

13/488406

Inventors:

DARYL ALLEN - Pasadena CA, US
MICHAEL GIARDELLO - Pasadena CA, US

Assignee:

MATERIA, INC. - Pasadena CA

International Classification:

B01J 31/22

US Classification:

548103, 560201, 585643

Abstract:

Supported olefin metathesis catalysts are disclosed, and more particularly, a supported catalyst complex comprising a catalyst composed of a Group 8 transition metal complex comprising a labile ligand and a non-labile ligand and a support, wherein the metal complex and the support are linked together by one or more linkers, in which one of the linkers connects the labile ligand of the complex to the support and the same or a different linker connects the non-labile ligand of the complex to the support. A method for preparing a supported catalyst complex is further disclosed. The invention further relates to the use of the supported olefin metathesis catalyst in performing metathesis reactions. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial and fine chemicals chemistry.

US Patent:

20190276388, Sep 12, 2019

Filed:

Sep 6, 2017

Appl. No.:

16/335342

Inventors:

- Hanau-Wolfgang, DE
Jessica R. HERRON - Pasadena CA, US
Richard L. PEDERSON - San Gabriel CA, US
Thay A. UNG - Monrovia CA, US
Ba L. TRAN - Kennewick WA, US
Daryl P. ALLEN - Pasadena CA, US

International Classification:

C07C 227/04
C07C 229/08
B01J 31/22

Abstract:

The invention relates to a method for synthesizing amino acids or amino acid derivatives involving cross metathesis of functionalized olefins and a tandem amination-reduction process. Amino acids and amino acid derivatives present many interesting physical and chemical properties finding many uses in the automotive, fuel, electronic, and textile industries.