14235-05-3

Upstream product

• 554-84-7 meta-nitrophenol 
• 32315-10-9 bis(trichloromethyl) carbonate 
• 75-44-5 phosgene 

Downstream Products

• 1158077-03-2 3-nitrophenyl 4-methylpiperazine-1-carboxylate 
• 309965-22-8 3-Nitrophenyl N-(2-hydroxybenzyl)-N-methylcarbamate 
• 4694-91-1 6-nitro-3H-benzooxazol-2-one 
• 28955-71-7 4-nitrobenzo[d]oxazol-2(3H)-one 
• 64459-24-1 tetrahydro-1-(5-t-butyl-1,3,4-thiadiazol-2-yl)-3-methyl-6-(3-nitrophenoxycarbonyloxy)-2(1H)-pyrimidinone 

Relevant academic research and scientific papers

Cu(II)-promoted methanolysis of N, N -bis(2-picolyl)carbamates: Rate-limiting metal ion delivery of coordinated alcoholate nucleophile followed by fast partitioning of a tetrahedral intermediate

Five O-aryl/alkyl N,N-bis(2-picolyl)carbamates were prepared with the O-aryl/alkyl portions being p-nitrophenoxy, m-nitrophenoxy, trifluoroethoxy, methoxy, and isopropoxy (4a,b,c,d,e, respectively) and the kinetics and reaction products of their methanolysis reactions in the presence of Cu(O3SCF3)2 determined. The catalyzed reactions have maximal rates for each substrate at a 1:1 ratio of [4]:[Cu2+] at sspH 7.9, where the active forms are Cu(II):4:(-OCH3). The reactions are fast, that for the complex of 4a having a t1/2 of 30 s. The products of the reaction with 4a and 4b arise exclusively from C-OAr cleavage: those with 4d and 4e arise exclusively from C-N cleavage. With 4c, products from both C-O and C-N cleavage are observed in a 2.17:1 ratio. The common mechanism involves rate-limiting delivery of a Cu(II)-coordinated methoxide to the C=O unit to form a tetrahedral intermediate followed by fast partitioning to products by two pathways with relative barriers dependent on the sspKaHOAr/HOR. The data allow one to predict an effective sspKa of ～15.6 for the sspKaNH of Cu(II):bis(2-picolyl)amine.

Versatile Cp*Co(III)(LX) Catalyst System for Selective Intramolecular C-H Amidation Reactions

Herein, we report the development of a tailored cobalt catalyst system of Cp*Co(III)(LX) toward intramolecular C-H nitrene insertion of azidoformates to afford cyclic carbamates. The cobalt complexes were easy to prepare and bench-stable, thus offering a convenient reaction protocol. The catalytic reactivity was significantly improved by the electronic tuning of the bidentate LX ligands, and the observed regioselectivity was rationalized by the conformational analysis and DFT calculations of the transition states. The superior performance of the newly developed cobalt catalyst system could be broadly applied to both C(sp2)-H and C(sp3)-H carbamation reactions under mild conditions.

DIARYLAMINE-CONTAINING COMPOUNDS AND COMPOSITIONS, AND THEIR USE AS MODULATORS OF C-KIT RECEPTORS

Described herein are compounds that include a diarylamine structural feature. Also described herein are methods for making such compounds, methods for using such compounds to modulate the activity of c-kit receptors, and pharmaceutical compositions and medicaments comprising such compounds. Also described herein are methods of using such compounds, pharmaceutical compositions and medicaments to treat and/or prevent and/or inhibit and/or ameliorate the pathology and/or symptomology diseases or conditions associated with the activity of c-kit receptors.

N-Terminal amino acid side-chain cleavage of chemically modified peptides in the gas phase: A mass spectrometry technique for N-terminus identification

Although genome databases have become the key for proteomic analyses, de novo sequencing remains essential for the study of organisms whose genomes have not been completed. In addition, post-translational modifications present a challenge in database sear

Topical compositions comprising protected functional thiols

This invention relates to a topical composition for treating amino acid based substrates comprising a protected thiol compound having the formula R—(S—Pr)m where R is a functional group, S is sulfur, and Pr is a heterocyclic protecting group, and m is an integer between 1 and 100. The invention further relates to systems which comprise this protected thiol compound and an activating mechanism. The protected thiol compounds of the present invention may be used in hair care compositions, textile care compositions, cosmetic compositions, oral care compositions, skin care, nail care, laundry care, acne care and animal care compositions. Preferred embodiments of the present invention provide a modified UV absorber and a modified antioxidant, methods for making them and compositions conprising them.

Topical compositions comprising protected functional thiols

This invention relates to a topical composition for treating amino acid based substrates comprising a protected thiol compound having the formula R—(S—Pr) m where R is a functional group, S is sulfur, and Pr is a heterocyclic protecting group, and m is an integer between 1 and 100. The invention further relates to systems which comprise this protected thiol compound and an activating mechanism. The protected thiol compounds of the present invention may be used in hair care compositions, textile care compositions, cosmetic compositions, oral care compositions, skin care, nail care, laundry care, acne care and animal care compositions. Preferred embodiments of the present invention provide a modified UV absorber and a modified antioxidant, methods for making them and compositions conprising them.

1-Aziridine carboxylic acid derivatives with immunostimulant activity

2-Substituted-1-aziridine-carboxylic acid esters exhibiting immuno-stimulant activity and of the formula STR1 wherein X is a carbamoyl or alkoxycarbonyl radical, and R1 is an aliphatic hydrocarbon radical optionally substituted by halogen, alkoxy, amino, carbamoyloxy, cycloalkyl, hydroxyl, an imido or heterocyclic radical, cycloalkyl; or aryl, aralkyl, aryloxyalkyl or arylthioalkyl wherein the aryl moiety is optionally substituted by halogen, alkyl, alkoxy, hydroxyl, amino, nitro, cyano, acyl, carbalkoxy, thioalkyl, alkylsulphonyl, phenyl or trifluoromethyl. Counterparts where X is --CN and R1 is as above, except for ethyl, are also new.