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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10435349 B1

PDFFull Text
Date of Patent:
Oct. 08, 2019

Filed:

Jul. 24, 2018

Iron-catalyzed cross-coupling of methanol with secondary or tertiary alcohols to produce formate esters

Applicant:

Eastman Chemical Company, Kingsport, TN (US);

Inventors:

Sumit Chakraborty, Johnson City, TN (US);

Steven J. Adams, Gray, TN (US);

Robert Thomas Hembre, Johnson City, TN (US);

Scott Donald Barnicki, Kingsport, TN (US);

Michael Richard Laningham, Erwin, TN (US);

Gerarld Wayne Ollis, Kingsport, TN (US);

Randy Lynn Jennings, Gate City, VA (US);

Assignee:

Eastman Chemical Company, Kingsport, TN (US);

Attorney:

Matthew W. Smith

Primary Examiner:

Paul A Zucker

Int. Cl.
CPC ...
C07C 69/013 (2006.01); C07C 69/003 (2006.01); C07C 67/00 (2006.01); C07F 17/00 (2006.01); C07F 15/00 (2006.01); B01J 31/24 (2006.01); C07F 15/02 (2006.01); B01J 31/18 (2006.01); B01J 31/20 (2006.01);
U.S. Cl.
CPC ...
C07C 69/013 (2013.01); B01J 31/189 (2013.01); B01J 31/20 (2013.01); B01J 31/24 (2013.01); C07C 67/00 (2013.01); C07C 69/003 (2013.01); C07F 15/0046 (2013.01); C07F 15/025 (2013.01); C07F 17/00 (2013.01); B01J 2231/49 (2013.01); B01J 2231/641 (2013.01); B01J 2231/763 (2013.01); B01J 2531/0244 (2013.01); B01J 2531/842 (2013.01); C01B 2203/0277 (2013.01); C01B 2203/04 (2013.01); C01B 2203/048 (2013.01);
Abstract

A process for preparing a variety of secondary and tertiary alkyl formate esters via the coupling of methanol and secondary (or tertiary) alcohols. Iron-based catalysts, supported by pincer ligands, are employed to produce these formate esters in high yields and unprecedentedly high selectivities (>99%). Remarkably, the coupling strategy is also applicable to bulkier tertiary alcohols, which afford corresponding tertiary formate esters in moderately high yields and high selectivities.

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