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High purity 4-chloro-2- trifluoromethyl benzonitrile CAS No 320-41-2 Pharmaceutical Intermediates for Organic Chemical

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  • CAS No.320-41-2,Benzonitrile,4-chloro-2

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  • CAS No.320-47-8,Benzonitrile,4-nitro-2

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    2021-4-5 · To a suspension of 3-(3-bromo-5-chlorophenoxy)-2-chloro-4- (trifluoromethyl)pyridine (1-2; 3.48 g; 8.99 mmol) in l BuOH (36 mL) was added KOH (1.51 g; 27.0 mmol) and the mixture was heated to 75°C overnight, at which point a yellow oily solid had precipitated from solution, and LCMS analysis indicated complete conversion. The mixture was ...

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  • DRUG SYNTHESIS INTERNATIONAL: TINIB SERIES 2/3

    2021-4-6 · Subsequently, 1.2 eq. of 0-(2-tert-butoxyethyl)hydroxylamine (Compound 4, CAS No. 1023742-13-3, available from suppliers such as Huhu Technology, Inc.®) is added over a period of about 30 minutes at 50°C and stirred for 1.5 hours. Demineralized water …

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  • Synthetic Approaches to the New Drugs Approved

    2021-3-12 · New drugs introduced to the market every year represent privileged structures for particular biological targets. These new chemical entities (NCEs) provide insight into molecular recognition while serving as leads for designing future new drugs. This annual review describes the most likely process-scale synthetic approaches to 29 new chemical entities (NCEs) that were approved for the first ...

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  • Route to Benzo- and Pyrido-Fused 1,2,4-Triazinyl

    2019-5-26 · As part of our ongoing studies on 1,2,4-benzotriazines, we required a reliable general route to benzotriazinyl radicals 1 that supported variation of the substituents at N-1 and C-3 and on the benzo-fused moiety. Herein we present a synthesis that avoids the formation of any unstable (highly reactive) intermediates such as the amidrazones 6 or the imidoyl/hydrazonyl chlorides 8 and 11.

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  • Synthetic Approaches to the New Drugs Approved

    2021-3-12 · New drugs introduced to the market every year represent privileged structures for particular biological targets. These new chemical entities (NCEs) provide insight into molecular recognition while serving as leads for designing future new drugs. This annual review describes the most likely process-scale synthetic approaches to 29 new chemical entities (NCEs) that were approved for the first ...

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    2021-4-2 · The chemical can turn pale yellow when it contacts air. The chemical has a molecular weight of 70.1, a boiling point of 219°F, and a freezing point of -101°F. The vapor pressure is 30mm Hg at 25°C and the specific gravity is 0.87. The lower explosive limit is 2.1% and the upper explosive limit is 15.5%.

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  • Homepage | California Air Resources Board

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  • Route to Benzo- and Pyrido-Fused 1,2,4-Triazinyl

    2019-5-26 · As part of our ongoing studies on 1,2,4-benzotriazines, we required a reliable general route to benzotriazinyl radicals 1 that supported variation of the substituents at N-1 and C-3 and on the benzo-fused moiety. Herein we present a synthesis that avoids the formation of any unstable (highly reactive) intermediates such as the amidrazones 6 or the imidoyl/hydrazonyl chlorides 8 and 11.

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  • Substituted Quinazoline and Pyridopyrimidine

    Preparation of tert-butyl 4-[8-chloro-6-(trifluoromethyl)pyrido[3,4-d]pyrimidin-4-yl]piperazine-1-carboxylate (22) Step 1: To a mixture of 8-chloro-6-(trifluoromethyl)pyrido[3,4-d]pyrimidin-4(3H)-one (12) (500 mg, 2 mmol) in POCl 3 (6 mL) was added N,N-dimethylaniline (0.5 mL), and the resultant mixture was stirred at 110° C. for 1 hour. TLC ...

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  • HETEROCYCLIC UREA DERIVATIVES AND THEIR USE

    Synthesis and antipsychotic activity of N-(4-(4-(1,2-benzisothiazol-3-yl)-1-pipera zinyl)butyl)1,2-cis-cyclohexanedicarboximi de (SM-9018) and related compounds' CHEMICAL & PHARMACEUTICAL BULLETIN, JAPAN DEC 1995, vol. 43, no. 12, December 1995 (1995-12), pages 2139-2151, MURRAY P J ET AL: 'A novel series of arylpiperazines with high affinity ...

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  • Patent 2858681 Summary - Canadian Patents Database

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  • All in One ‐ Complete Issue: ChemInform 29/2012 ...

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  • Synthetic Approaches to the New Drugs Approved

    2019-3-13 · New drugs introduced to the market every year represent privileged structures for particular biological targets. These new chemical entities (NCEs) provide insight into molecular recognition while serving as leads for designing future new drugs. This annual review describes the most likely process-scale synthetic approaches to 29 new chemical entities (NCEs) that were approved for the first ...

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    1989-1-1 · Some of the discussed compounds are abietic acid, acetaldehyde, acetamide, acetaminophen, acetanilide, acetic acid, acetic anhydride, acetone, acetonitrile, 9-acridinecarboxaldehyde, adrenaline butyl ether, benzyl alcohol, benzyl benzoate, benzyl butyl phthalate, and benzyl butyl sebacate. several compounds discussed are benzyl hexyl phthalate ...

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  • Subject Index - ScienceDirect

    1999-1-1 · Subject Index Volume numbers are set in bold face A A. mngnetotacticum, magnetic crystals, 36: 155156 A. mentula, vanadium levels, 35:104-105 Abbreviations for ligands and solvents, 32:158-160 for metalloproteins, 32:329 for nickel redox chemistry, 32:288-290 ab initio molecular calculations complex lithium amides, 37:117-123 iminolithiums, 37:79-82 uncomplexed lithium amides, 37: 105107 ...

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  • Patent 2858681 Summary - Canadian Patents Database

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    Application Number Filing Date Patent Number Issue Date; 14958513: Dec 3, 2015: 9598430: 14302260: Feb 16, 2016: 9260427: 61833737: Jun 11, 2013: 61981643: Apr 18, 2014

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  • Journal of Radioanalytical and Nuclear Chemistry,

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  • Modulators of atp-binding transporters

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  • Advances in Chromatography: Volume 45 (Advances

    0.48 0.87 3.48 2.77 3.33 4.18 4.56 4.20 5.10 6.1 6.6 Source: Adapted from Snyder, L.R., Principles of Adsorption Chromatography, Marcel Dekker, New York, 1968. The vast majority of separations using silica as an adsorbent are performed in the normal-phase mode.

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  • Industrial Chemical Cresols and Downstream

    The simple ether derivatives, 2-methoxy-naphthalene [CAS no. 93-04-9], nerolin, and 2-ethoxy-naphthalene [CAS no. 93-18-5] now are made easily by methylation (using dimethyl sulfate) or ethylation (using di-ethylsulfate) for use in perfume formulation and more recently as drugs intermediates.

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