CAS: 5274-70-4; 2-Hydroxy-3-Nitrobenzaldehyde

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CAS号90-02-8 水杨醛 | CAS号89-95-2 邻甲基苄醇 | CAS号13680-09-6 2-methyl-7-nitr... | CAS号13073-29-5 2-甲基-6-硝基苯酚 | CAS号70277-91-7 Phenol,2-methyl... | CAS号67-66-3 氯仿 | CAS号88-75-5 邻硝基苯酚 | CAS号22065-49-2 2-methoxy-3-nit... | CAS号110683-72-2 ethyl 7-nitro-1... | CAS号22065-49-2 2-methoxy-3-nit... | CAS号85-38-1 3-硝基水杨酸 | CAS号6665-98-1 3-硝基邻苯二酚 | CAS号16634-88-1 5-溴-3-硝基水杨醛 | CAS号2942-42-9 7-硝基吲唑 | CAS号1829-34-1 3-溴柳醛 | CAS号935758-15-9 3-氧代-3,4-二氢-2H-... | CAS号1233706-54-1 (2-Amino-6-form...

水杨醛置于三聚氯氰体系中,用 乙腈 作为反应溶剂,化学反应 0.83H,以80%的收率获得产物3-硝基水杨醛
参考文献:纤维素负载的 Ni(No3)2 . 6H2O/2,4,6-Trichloro-1,3,5-Triazine (Tct) 作为一种温和,选择性和可生物降解的苯酚硝化系统
标题:纤维素负载的 Ni(No3)2 . 6H2O/2,4,6-Trichloro-1,3,5-Triazine (Tct) 作为一种温和,选择性和可生物降解的苯酚硝化系统
摘要:摘要 在可生物降解的纤维素负载ni(No3)2.6H2O/2,4,6-三氯-1,3,5-三嗪的存在下,在乙腈中室温下硝化某些酚类和萘酚.邻硝化苯酚在较短的反应时间内以区域选择性获得,产率非常好.反应条件温和,所用纤维素可多次回收再利用.
DOI:10.1080/00397911.2010.516054

专利信息

专利号:US-4197408-A
优先权日:1975-08-01
标 题 :Asymmetric synthesis of alkyl chrysanthemate
发明人：ARATANI TADATOSHI; FUJITA FUMIO; NAGASE TSUNEYUKI; YONEYOSHI YUKIO
权利人:SUMITOMO CHEMICAL CO
摘要:A process for the production of an optically active chrysanthemate which comprises reacting 2,5-dimethyl-2,4-hexadiene with a diazoacetate of the formula: n n N.sub.2 CHCOOR n n wherein R is selected from the group consisting of (a) cycloalkyl group with or without substituent(s) whose total carbon atom number is 5-20, (b) tertiary aralkyl group whose carbon atom number is 9 to 20, and (c) tertiary alkyl group with or without alkoxy substituent(s) whose total carbon atom number is 4-20, in the presence of a copper complex coordinated with a chiral Schiff base of the formula: ##STR1## wherein C* is an asymmetric carbon atom, R 1 is selected from the group consisting of (a) alkyl groups whose carbon atom number is 1-10 and (b) aralkyl groups with or without alkoxy substituent(s), whose total carbon atom number is 7-20, R 2 is selected from aryl groups with alkoxy substituent(s), whose total carbon atom number is 7-30, and each of X 1 and X 2 is selected from the group consisting of (a) hydrogen atom, (b) alkyl groups having 1-10 carbon atoms, (c) phenyl group, (d) alkoxy groups having 1-10 carbon atoms, (e) halogen atoms and (f) nitro group, or (g) X 1 and X 2 together form a benzo group.

专利号:US-4603218-A
优先权日:1983-06-03
标题 :Asymmetric synthesis of cyclopropanecarboxylate derivatives using chiral copper complex as catalyst
发明人：ARATANI TADATOSHI; YOSHIHARA HIROSHI; SUSUKAMO GOHFU
权利人:SUMITOMO CHEMICAL CO
摘要:A chiral copper complex which is produced by the reaction of a chiral copper complex of the formula: ##STR1## wherein R 1 is (a) alkyl group, or (b) aralkyl group; R 2 is (a) 2-alkoxyphenyl group, or (b) 2-alkoxy-5-alkylphenyl group; either one of X 1 and X 2 is (a) hydrogen atom, (b) halogen atom, (c) alkyl group, (d) alkoxy group, or (e) nitro group, or adjacent X 1 and X 2 together form a benzo group, with a mono-substituted hydrazine of the formula: n n R.sub.3 NHNH.sub.2 n n wherein R 3 is (a) aryl group, (b) aralkyl group, or (c) alkyl group. n The copper complex is used as a catalyst in the production of an optically active alkyl cyclopropanecarboxylate.

专利号:US-3950356-A
优先权日:1969-03-06
标题:Synthesis of photochromic indolinespiropyrans
发明人：HINNEN ALAIN
权利人:SAINT GOBAIN
摘要:Photochromic indolinespiropyrans are formed in a substantially pure state by the reaction of a 2-alkyleneindoline and an orthohydroxyl aromatic aldehyde dissolved in dimethylformamide.

专利号:US-4029690-A
优先权日:1973-02-14
标题:Asymmetric synthesis of alkyl chrysanthemates
发明人：ARATANI TADATOSHI; NAKAMURA SHUZO; NAGASE TSUNEYUKI; YONEYOSHI YUKIO
权利人:SUMITOMO CHEMICAL CO
摘要:Process for producing an optically active alkyl chrysanthemate by reacting 2,5-dimethyl-2,4-hexadiene with an alkyl diazoacetate in the presence of a copper complex coordinated with a particular Schiff base.

专利号:US-7718598-B1
优先权日:1998-09-25
标 题:Auxiliary for amide bond formation
发明人：SMYTHE MARK LESLIE; MEUTERMANS WIM DENIS FRANS
权利人:UNIV QUEENSLAND
摘要:This invention relates to methods for preparing cyclic peptides and peptidomimetic compounds in solution and bound to solid supports, and to cyclic peptide or peptidomimetic libraries for use in drug screening programmes. In particular, the invention relates to a generic strategy for synthesis of cyclic peptides or peptidomimetics that enables the efficient synthesis under mild conditions of a wide variety of desired compounds. Two approaches were evaluated for their improvements in solution and solid phase synthesis of small cyclic peptides: positioning reversible N-amide substituents in the sequence; and applying native ligation chemistry in an intramolecular sense. Systematic investigation of the effects of preorganizing peptides prior to cyclisation by using peptide cyclisation auxiliaries, and developing new linkers and peptide cyclisation auxiliaries to aid cyclic peptide synthesis gives surprising improvements in both yields and purity of products compared to the prior art methods. The combination of these technologies provides a powerful generic approach for the solution and solid phase synthesis of small cyclic peptides. The ring contraction and N-amide substitution technology of the invention provide improved methods for the synthesis of cyclic peptides and peptidomimetics. When used in conjunction with linker strategies, this combination provides solid-phase avenues to cyclic peptides and peptidomimetics.

专利号:US-4029683-A
优先权日:1973-02-14
标 题 :Copper complex
发明人：ARATANI TADATOSHI; NAKAMURA SHUZO; NAGASE TSUNEYUKI; YONEYOSHI YUKIO
权利人:SUMITOMO CHEMICAL CO
摘要:A copper complex coordinated with a Schiff base is provided herein, which complex is especially advantageous to catalyze the asymmetric synthesis of alkyl chrysanthemates. The specific complex of the present invention is a copper complex coordinated with a chiral Schiff base of the formula: ##STR1## wherein C* is an asymmetric carbon atom, R 1 is selected from (a) alkyl groups whose carbon atom number is 1-10, and (b) aralkyl groups with or without alkoxy substituent(s), whose total carbon atom number is 7-20, R 2 is selected from aryl groups with alkoxy substituent(s), whose total carbon atom number is 7-30, X is selected from (a) hydrogen, (b) alkyl groups having 1-10 carbon atoms, (c) a phenyl group, (d) alkoxy groups having 1-10 carbon atoms, (e) halogen atoms, (f) nitro, or X is benzo which together with the ring to which it is attached forms a naphthalene ring, and Y is a hydrogen atom.