CAS: 1139-52-2; 4-Bromo-2,6-Di-Tert-Butylphenol

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10323-39-4 20834-61-1 23159-87-7

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CAS号128-39-2 2,6-二叔丁基苯酚 | CAS号106-41-2 对溴苯酚 | CAS号1144-36-1 4,4-二溴-2,6-二叔丁基... | CAS号507-20-0 氯代叔丁烷 | CAS号67-56-1 甲醇 | CAS号950-57-2 4-bromo-2,6-dit... | CAS号64-17-5 乙醇 | CAS号67-63-0 异丙醇 | CAS号20017-35-0 1-(3,5-Di-tert-... | CAS号719-22-2 2,6-二叔丁基苯醌 | CAS号81056-40-8 5-Brom-7-tert-b... | CAS号2455-14-3 3,3',5,5'-四叔丁基-... | CAS号2179-38-6 bis(1-bromo-3,5... | CAS号128-38-1 四叔丁基联苯酚 | CAS号96-76-4 2,4-二叔丁基酚 | CAS号155722-06-8 2-(3,5-ditert-b... | CAS号128-39-2 2,6-二叔丁基苯酚 | CAS号1516-96-7 4-溴-2,6-二叔丁基苯甲醚 | CAS号121846-89-7 2,6-ditert-buty...

📜2,6-二叔丁基苯酚置于n-溴代丁二酰亚胺(Nbs)体系中,用 乙腈 用作溶剂,以85%的收率获得4-溴-2,6-二叔丁基苯酚
参考文献:用于探测肽和蛋白质中质子耦合电子转移过程的酪氨酸类似物
标题:用于探测肽和蛋白质中质子耦合电子转移过程的酪氨酸类似物
摘要:已经制备并表征了一系列类似于酪氨酸但在芳醇侧链的物理化学性质上不同的氨基酸.这些化合物有望用于理解肽和蛋白质中长程质子耦合电子转移过程中的结构,热力学和动力学之间的关系.通过用苯酚代替吡啶醇和嘧啶醇部分,可以诱导酪氨酸侧链的酸度,氧化还原电位和 Oh 键强度的系统变化.通过在酚羟基邻位引入甲基和叔丁基取代基,可以进一步调节.非天然氨基酸是通过 Pd 催化交叉偶联制备的,相应的卤代芳醇被保护为苄基醚,与衍生自 N-Boc L-丝氨酸羧甲基酯的有机锌试剂交叉偶联.随后通过催化氢化的脱苄基以非常好的收率获得酪氨酸类似物.分光光度法滴定显示约酪氨酸 Pk(A) 减少.每个包含的氮原子 1.5 Log 单位,以及 Ca 的氧化(峰值)电位相应增加.分别为 200 Mv.总而言之,这里描述的六种新氨基酸具有酚样侧链,其 Pk(A) 的范围为 7.0 到大于 10,氧化(峰值)电位范围在 600 Mv 左右生理ph值.进行自由基平衡
Doi:10.1021/ja907921W

专利信息

专利号:US-4178447-A
优先权日:1977-09-23
标 题:Novel synthesis of 3,3-substituted dihydrobenzisothiazole-1,1-dioxides and -2,3-dihydronaphtho-1,2-thiazine-1,1-dioxides
发明人：BORROR ALAN L; FOLEY JAMES W; KAMPE MARCIS M; LEE JOHN W JR
权利人:POLAROID CORP
摘要:This invention relates to a method of synthesizing certain 3-(carbocyclic aryl)-3-(4'-OP-carbocyclic aryl)-2,3-dihydrobenz[d]isothiazole-1,1-dioxides (and -2,3-dihydronaphtho[1,8-de]-1,2-thiazine-1,1-dioxides) by reacting (a) a 4-OP-carbocyclic aryllithium compound wherein P is a protecting group and (b) a 3-(carbocyclic aryl)benz[d]isothiazole-1,1-dioxide wherein said 3-(carbocyclic aryl) moiety is other than a 3-(4'-OP-carbocyclic aryl) moiety to give (c) the corresponding 3-carbocyclic aryl)-3-(4'-OP-carbocyclic aryl)-2,3-dihydrobenz[d]isothiazole-1,1-dioxide. The -2,3-dihydronaphtho[1,8-de]-1,2-thiazine-1,1-dioxides are prepared in the same manner by reacting a 3-(carbocyclic aryl)naphtho[1,8-de]-1,2-thiazine-1,1-dioxide with said 4'-OP-carbocyclic aryllithium compound. n In a further embodiment, the compounds synthesized according to the foregoing method are reacted with a carboxylic acid halide to give the corresponding 2-carbonyl-substituted 2,3-dihydrobenz[d]isothiazole-1,1-dioxide (or -2,3-dihydronaphtho[1,8-de]-1,2-thiazine-1,1-dioxides) followed by removing the protecting group, P, with weak acid to yield certain phenol and 1-naphthol sulfam(na)phthaleins useful, e.g., as optical filter agents and filter agent precursors in photography.

专利号:US-11155505-B2
优先权日:2017-02-17
标题 :Synthesis of pheromones and related materials via olefin metathesis
发明人：WAMPLER KEITH M; BUI VU; ROZZELL DAVID; COELHO PEDRO; FLORUTI ARTHUR; ONDI LEVENTE; MEHDI HASAN; EROS GABOR
权利人:PROVIVI INC
摘要:Methods for preparation of olefins, including 8- and 11-unsaturated monoenes and polyenes, via transition metathesis-based synthetic routes are described. Metathesis reactions in the methods are catalyzed by transition metal catalysts including tungsten-, molybdenum-, and ruthenium-based catalysts. The olefins include insect pheromones useful in a number of agricultural applications.

专利号:US-11345665-B2
优先权日:2017-11-15
标题:Chiral 1,3-diarylimidazolium salt carbene precursor, synthesis method therefor, metal salt compound and application thereof
发明人：SHI SHILIANG; CAI YUAN; Yang Xintuo; LI FENG
权利人:SHANGHAI INST ORGANIC CHEMISTRY CAS
摘要:Chiral 1, 3-diarylimidazole salt carbene precursors, their methods of preparation, particularly transition metal complexes and their use in chemical synthesis are provided. In particular, an air and moisture stable chiral 1, 3-diarylimidazole carbene precursor Cu (I) complex has been prepared and applied to highly regio- and enantioselective Markovnikov hydroboration of unactivated terminal alkenes to form chiral boronic esters. Moreover, these new chiral NHCs can be potentially applied in various metal-catalyzed asymmetric transformations.

专利号:US-2021130270-A1
优先权日:2018-07-16
标 题 :Synthesis of straight-chain lepidopteran pheromones through one- or two- carbon homologation of fatty alkenes

专利号:US-2020039900-A1
优先权日:2017-02-17
标题 :Synthesis of pheromones and related materials via olefin metathesis

专利号:CN-110603240-B
优先权日:2017-02-17
标 题:Synthesis of pheromones and related substances via olefin metathesis