CAS: 100-48-1; 4-Cyanopyridine

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吡啶-N-氧化物置于potassium Cyanide,水,乙腈体系中,化学反应生成4-氰基吡啶
参考文献:Cyanation Of Amine Oxide Salts. A New Synthesis Of Cyanopyridines
标题:Cyanation Of Amine Oxide Salts. A New Synthesis Of Cyanopyridines
摘要:
Doi:10.1021/ja01524A046

专利信息

专利号:US-8735586-B2
优先权日:2007-06-26
标 题 :Regioselective copper catalyzed synthesis of benzimidazoles and azabenzimidazoles
发明人：ALONSO JORGE; LINDENSCHMIDT ANDREAS; NAZARÉ MARC; URMANN MATTHIAS; HALLAND NIS; RKYEK OMAR
权利人:ALONSO JORGE; LINDENSCHMIDT ANDREAS; NAZARÉ MARC; URMANN MATTHIAS; HALLAND NIS; RKYEK OMAR; SANOFI SA
摘要:The present invention relates to a process for the regioselective synthesis of compounds of the formula I, n nwherein R0; R1; R2; R3; R4; R5; A1; A2; A3; A4, Q and J have the meanings indicated in the claims. The present invention provides a direct copper catalyzed regioselective process to a wide variety of unsymmetrical, multifunctional N-substituted benzimidazoles or azabenzimidazoles of formula I starting from 2-halo-nitroarenes and N-substituted amides.

专利号:US-8299206-B2
优先权日:2007-11-15
标题:Method of synthesis of morpholino oligomers
发明人：FOX CHRISTINA MARY JOSEPHINE; WELLER DWIGHT D
权利人:FOX CHRISTINA MARY JOSEPHINE; WELLER DWIGHT D; AVI BIOPHARMA INC
摘要:Improved methods are described for solid-phase synthesis of morpholino oligomers, in which a protected morpholino ring nitrogen is deprotected between coupling steps using a heterocyclic amine salt in a trifluoroethanol-containing solvent, where the salt is a salt of a heterocyclic amine, having a pKa in the range of 1-4 in its protonated form, with an acid selected from a sulfonic acid, trifluoroacetic acid, and hydrochloric acid. Examples are 3-chloropyridinium methanesulfonate (CPM) and 4-cyanopyridinium trifluoroacetate (CYTFA).

专利号:US-2025282813-A1
优先权日:2021-04-09
标 题 :Pseudo solid phase protecting group and methods for the synthesis of oligonucleotides and oligonucleotide conjugates
发明人：OKADA YOHEI; SUZUKI HIDEAKI; LUTHER ANATOL
权利人:BACHEM HOLDING AG
摘要:A novel pseudo solid phase protecting group and methods for the synthesis of oligonucleotides and oligonucleotide conjugates are provided. The pseudo solid phase protecting group is represented by formula II wherein: * indicates the point of attachment to an oxygen atom of a hydroxyl moiety of the nucleoside, the nucleotide, the oligonucleotide, or of the conjugate of a nucleoside, a nucleotide or an oligonucleotide to be protected; c is 0 or 1; a is an integer of 1 to 12; R3 is H; R5 is O—R6 or H, where R6 is a C8-C40 aliphatic hydrocarbon group; each of R4 is independently O—R6, where R6 is at each occurrence independently a C8-C40 aliphatic hydrocarbon group; b is 1 to 3; with the proviso that if b is 1, at least one of R3 and R5 is not H; and with the further proviso that the sum of all carbon atoms contained in the R3, R4, and R5 moieties present is larger than 23 and smaller than 200.

专利号:EP-0791575-A1
优先权日:1996-02-16
标题 :Method of synthesis of a quaternary ammonium salt
发明人：NAKANO SHINJI
权利人:NIPPON PAINT CO LTD
摘要:The present invention provides an improved method of synthesis of a quaternary ammonium salt in which a tertiary amine is reacted with a benzyl halide optionally having on the benzene ring and/or at the α-site one ore more substituent groups inert to the reaction, which method is characterized in that the reaction is carried out in water or in a water-containing organic solvent.

专利号:EP-2173747-B1
优先权日:2007-06-26
标 题:A regioselective metal catalyzed synthesis of annelated benzimidazoles and azabenzimidazoles
发明人：ALONSO JORGE; LINDENSCHMIDT ANDREAS; NAZARE MARC; R KYEN OMAR; URMANN MATHIAS; HALLAND NIS
权利人:SANOFI SA
摘要:The present invention relates to a process for the regioselective synthesis of compounds of the formula I, wherein R1; R2; R3; R4; J1; J2; J3; J4 and G have the meanings indicated in the claims. The present invention provides a direct metal, e.g. palladium or copper, catalyzed, regioselective process to a wide variety of unsymmetrical, multifunctional N-substituted benzimidazoles or azabenzimidazoles of formula I starting from 2-halo-nitroarenes and N-substituted amides.

专利号:US-5349067-A
优先权日:1992-04-10
标题:Method for the synthesis of quaternary ammonium salts
发明人：NAKANO SHINJI; MORIMOTO TAKAO; ENDO TAKESHI
权利人:NIPPON PAINT CO LTD
摘要:Provided is a convenient method for the synthesis of quaternary ammonium sulfonate compounds which are useful as curing catalysts for one-part thermosetting resin compositions which maintain storage stability at room temperature. The compounds are synthesized by subjecting in one step a benzyl alcohol optionally having on the benzene ring and/or the α-position one or more substituent groups to reaction with a corresponding tertiary amine and an organic sulfonic acid chloride.