PATENT CLAIM ANALYSIS

Application Number: 16043308
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-02
Patent Classification: ["560", "263000"]

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.

Claim (Index 1):
A process for preparing a formate ester of the formula (X): the process comprising contacting anhydrous methanol with an alcohol of the formula (XI): in the presence of a catalyst of the formula (I): in a reactor at conditions effective to form the formate ester of the formula (X),\n wherein the contacting step is conducted in the presence of a hydrogen acceptor, or with the simultaneous removal of hydrogen from the reactor, or both, and \n wherein \n R 1  and R 2  are each independently an alkyl, aryl, alkoxy, aryloxy, dialkylamido, diarylamido, or alkylarylamido group having 1 to 12 carbon atoms; \n R 3  and R 4  are each independently an alkyl or aryl group having 1 to 12 carbon atoms, if E is nitrogen; \n R 3  and R 4  are each independently an alkyl, aryl, alkoxy, aryloxy, dialkylamido, diarylamido, or alkylarylamido group having 1 to 12 carbon atoms, if E is phosphorus; \n R 1 , R 2 , and P may be connected to form a 5 or 6-membered heterocyclic ring; \n R 3 , R 4 , and E may be connected to form a 5 or 6-membered heterocyclic ring; \n R 5  and R 6  are each independently a C1-C6 alkylene or arylene group; \n E is phosphorus or nitrogen; \n L is a neutral ligand; \n R 10 , R 11 , and R 12  are each independently hydrogen or an alkyl group having 1 to 6 carbon atoms, provided that no more than one of R 10 , R 11 , and R 12  is hydrogen; \n R 11  and R 12  may be connected to form a cycloaliphatic group having 4 to 8 carbon atoms; and \n R 10 , R 11 , and R 12  may be connected to form a bicycloaliphatic group having 5 to 14 carbon atoms.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 95.0
- Lexical Diversity: 1.55769
- Patent Class: 560.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16043317', '16043320', '12812978', '15740996', '14585915']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6433553845327908
- 35 USC 102 Novelty (BERT): 0.515773040749057
- Combined Prediction Score: 0.6305971501544174
- Mean Citation Score: 198.943496
- Max Citation Score: 209.8278
- Similarity Product: 164.2319818927288

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test