PATENT CLAIM ANALYSIS

Application Number: 15746646
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["540", "527000"]

Abstract:
The present invention provides oxalic amide ligands and uses thereof in copper-catalyzed coupling reaction of aryl halides. Specifically, the present invention provides a use of a compound represented by formula I, wherein definitions of each group are described in the specification. The compound represented by formula I can be used as a ligand in copper-catalyzed coupling reaction of aryl halides for the formation of C—N, C—O and C—S bonds.

Claim (Index 9):
A catalyst system for aryl coupling reaction, which comprises: a copper catalyst, a ligand, a base, and an organic solvent;\n wherein the copper catalyst is selected from the group consisting of CuI, CuBr, CuCl, CuTc, Cu(OAc) 2 , CuSO 4 , Cu 2 O, CuBr 2 , CuCl 2 , CuO, CuSCN, CuCN, Cu(acac) 2 , and the combinations thereof; and preferably is CuI, Cu 2 O, or Cu(acac) 2 ; the base is selected from the group consisting of potassium carbonate, cesium carbonate, potassium phosphate, sodium bicarbonate, potassium bicarbonate, sodium carbonate, lithium hydroxide, sodium hydroxide, tetrabutyl ammonium hydroxide, and/or a hydrate of the base, and the combinations thereof; and preferably is potassium phosphate, cesium carbonate, orlithium hydroxide; the solvent is selected from the group consisting of DMSO, DMF, DMA, NMP, acetonitrile, isopropanol, 1,4-dioxane, tetrahydrofuran, toluene, tert-butanol, and the combinations thereof; and preferably is DMSO and/or DMF and/or DMSO/H 2 O; the ligand has the structure as shown by the following formula (I): wherein the definition of each group is as defined in  claim 1 .

Metadata:
- Claim Count in Document: 30.0
- Percentile: 86.0
- Lexical Diversity: 1.63043
- Patent Class: 540.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15505052', '15436608', '15504854', '13035640', '15566872']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7780144748918834
- 35 USC 102 Novelty (BERT): 0.5345218931283734
- Combined Prediction Score: 0.7536652167155324
- Mean Citation Score: 356.33223200000015
- Max Citation Score: 361.1353
- Similarity Product: 203.9650286774695

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

Dataset: test