CAS: 13421-13-1; 4-Chloro-2-Iodobenzoic Acid

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📜2-氨基-4-氯苯甲酸置于硫酸,Sodium Nitrite,Potassium Iodide体系中,用 二甲基亚砜,水 用作溶剂,化学反应 4.0H,反应生成4-氯-2-碘苯甲酸
参考文献:Synthesis Of Dibac Analogues With Excellent Spaac Rate Constants
标题:Synthesis Of Dibac Analogues With Excellent Spaac Rate Constants
摘要:四种新的dibac类似物显示出优秀的spaac速率常数,使它们与目前已知最快的环辛烯相媲美.
Doi:10.1039/c4Ob00694A

专利信息

专利号:WO-2024056117-A1
优先权日:2022-09-16
标题:Method of electrochemical synthesis of lambda5- iodanes derived from iodoarenes in water-based solutions
发明人：BYSTRON TOMAS; JIRASKO MARTIN; DEVADAS BALAMURUGAN; KVICALA JAROSLAV
权利人:VS CHEMICKO TECHNOLOGICKA V PRAZE
摘要:The present invention relates to a method for electrochemical synthesis of λ 5-iodanes, which comprises the following steps: i) providing an aqueous solution of iodoarene of general formula Ar-I, wherein Ar is (C6 to C10)aryl, which may optionally be substituted with one or more substituents selected from the group comprising (C1 to C6)alkyl, (C1 to C10)aryl, (C1 to C6)alkoxy group, -COOH, -SO3H, halogen, -NO2, -C(=O)-NHR, -C(=O)-NR2, wherein R is independently selected from the group comprising (C1 to C10)alkyl, linear methoxy-(C2 to C5)alkyl, (C1 to C6)trialkylammonium group; ii) placing the aqueous solution of iodoarene from step i) into an electrochemical cell (1), containing a cathode and an anode, wherein the cathode is the counter electrode (1f) and the anode is the working electrode (1g) and comprises a surface containing a boron doped diamond active layer possessing semiconducting or metallic conductivity, which is in direct contact with the aqueous solution of iodoarene; iii) determining the electrode potential of the anode at the anode; electrolyte interface suitable for the oxidation reaction of the iodoarene; iv) applying the electrode potential, determined in step iii), to the aqueous solution of iodoarene of general formula (I) to cause its oxidation into λ 5-iodane of general formula ArI(OR1)(OR2)(OR3)(OR4) and/or ArI(OR1)(OR2)(O) and/or ArIO2, wherein Ar is defined in step i), and R1, R2, R3, R4 are independently selected from the group comprising hydrogen; acyl, which may be attached to the same or different aromatic ring as the iodine atom; (C2 to C6)alkylacyl; sulfonyl group that may be attached to the same or different aromatic ring as iodine atom; (C2 to C6)alkylsulfonyl.

专利号:CN-115785052-A
优先权日:2022-11-21
标题 :A method for highly selective synthesis of isocoumarins under polyacid catalysis

专利号:CN-115785052-B
优先权日:2022-11-21
标 题 :A method for highly selective synthesis of isocoumarin under polyacid catalysis