PATENT CLAIM ANALYSIS

Application Number: 15886494
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["546", "021000"]

Abstract:
Compounds of formula I are disclosed: wherein X 1 , X 2 , X 3 , X 4  are independently H, F, Cl, Br, I, CN, NO 2 , OR 1 , SR 1 , NR 1 R 2 , COR 1 , COOR 1 , CONR 1 R 2 , PO 3 R 1 R 2 , SO 2 R 1 , SO 3 R 1  or R 3 ; R 1  and R 2  are, e.g., H, alkyl or aryl or optionally a ring; R 3  is, e.g., alkyl, alkenyl, alkynyl, aryl or cycloalkyl; Y is OR 1 , NR 1 R 2 , or NR 1 R 3 ; Q is O, S, SO 2 , NR, C(R 3 ) 2 , Si(R 3 ) 2 , Ge(R 3 ) 2 , P(═O)R 3  or P(═O)OR 3 ; Q and X 1  can optionally form part of a ring; L and M are independently OR 1 , SR 1 , NR 1 R 2  and R 3 ; L and M can optionally form part of a ring; Z is O, S, NR 1 , CR 1 R 3  or aryl; and Z and X 4  can optionally form part of a ring.

Claim (Index 11):
A method for preparing the compound according to  claim 1 , comprising the following steps:\n a) Reacting of a precursor compound, wherein a group P(\u2550O)LM is replaced with either a hydrogen atom or a reacting group selected from the following: CN, Cl, Br, I, triflate (OTf), nonaflate (ONf) or other sulfonyloxy (OSO 2 R) group, with phosphinic (hypophosphorous) acid H 3 PO 2  or its esters H 2 P(O)OR, phosphinites [R a OPR b R c ], phosphonites [(R a O)(R 5 O)PR c ], phosphites R c OP(OR a )(OR b ), phosphoramidites R c R d NP(OR a )(OR b ), where R a-d  are H, alkyl or aryl, or salts of the corresponding esters, where at least one of R a-d  is a metal; the reacting providing either directly a compound of  claim 1 , or an intermediate compound, which can be isolated or used as crude material for the following step; b) Optional alkylation of an intermediate phosphinic ester leuco derivative with an alkyl halide, alkyl sulfonate or a Michael acceptor, if step a) was performed with phosphinic (hypophosphorous) acid or its esters; c) Oxidizing of the leuco intermediate into a dye of the formula of  claim 1  by oxidation with an organic or inorganic oxidant, or with an inorganic oxidant in the presence of catalytic amounts of an organic oxidant(s), or electrochemically, with or without subsequent acidic or basic hydrolysis; and d) Optionally performing post-synthetic modifications.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 88.0
- Lexical Diversity: 3.96774
- Patent Class: 546.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14829169', '13702252', '13574018', '13003945', '10941440']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7804561414134862
- 35 USC 102 Novelty (BERT): 0.5074988354100748
- Combined Prediction Score: 0.7531604108131451
- Mean Citation Score: 294.05009800000005
- Max Citation Score: 308.89328
- Similarity Product: 264.7450871734524

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