CAS: 107-59-5; Tert-Butyl Chloroacetate

上下游产品

CAS号79-04-9 氯乙酰氯 | CAS号75-65-0 叔丁醇 | CAS号79-11-8 氯乙酸 | CAS号540-88-5 醋酸叔丁酯 | CAS号115-11-7 2-甲基丙烯 | CAS号35000-37-4 (叔丁氧基羰基甲基)氯化三苯基磷 | CAS号349-82-6 [3-(三氟甲基)苯氧基]乙酸 | CAS号38559-92-1 4-苯甲氧基苯氧基乙酸 | CAS号149554-03-0 2-(4-氧代哌啶-1-基)乙酸叔丁酯 | CAS号50595-15-8 2-乙醇酸叔丁酯 | CAS号21320-60-5 4-硝基-2-氯苯氧基乙酸叔丁酯 | CAS号188560-12-5 tert-butyl 2-ch... | CAS号19545-95-0 (4-氯-3,5-二甲基苯氧基)乙酸 | CAS号22731-65-3 2-Methylene-1-p... | CAS号27240-57-9 tert-butyl 2-et...

氯乙酸,叔丁醇置于cerium(Iv) Trifluoromethanesulfonate体系中,用 四氯化碳 用作溶剂,化学反应 8.0H,以90%的收率获得氯乙酸叔丁酯
参考文献:醇,羧酸的催化酯化和与三氟甲磺酸铈 (Iv) 的酯交换反应
标题:醇,羧酸的催化酯化和与三氟甲磺酸铈 (Iv) 的酯交换反应
摘要:醇与乙酸,氯乙酸,三氟乙酸,丙酸,硬脂酸和苯甲酸的酯化反应用 Ce(Otf)4 在溶剂中或在无溶剂条件下以高产率催化.伯醇和仲醇的甲酰化和乙酰化也很容易在甲酸乙酯和乙酸乙酯中实现.在 (-)-薄荷醇的乙酰化和甲酰化中观测到构型的高保留.
Doi:10.1246/bcsj.72.455

专利信息

专利号:US-11034664-B1
优先权日:2020-05-11
标题 :Synthesis of cyclic carbonate monomers
发明人：PARK NATHANIEL H; HEDRICK JAMES L; PIUNOVA VICTORIA A; ARRECHEA PEDRO; ERDMANN TIM
权利人:IBM
摘要:Techniques regarding the synthesis of cyclic carbonate monomers are provided. For example, one or more embodiments described herein can comprise a method, which can include cyclizing a functionalized diol monomer with N,N′-carbonyldiimidazole, wherein the cyclizing produces a cyclic carbonate monomer and an imidazole carbamate. The method can also include activating the imidazole carbamate with an acid, wherein the activating promotes cyclization of the imidazole carbamate into the cyclic carbonate monomer.

专利号:US-4734495-A
优先权日:1985-07-17
标 题 :Process and intermediates for beta-lactam antibiotics
发明人：EVANS DAVID A; SJOGREN ERIC B
权利人:HARVARD COLLEGE
摘要:1-Benzyl(or substituted benzyl)-3β-[4(S)-aryloxazolidin-2-one-3-yl]-4β-(2-arylvinyl)azetidin-2-ones are provided via cycloaddition of a 4(S)-aryloxazolidin-2-one-3-ylacetyl halide and an imine formed with a benzylamine and a 3-arylacrolein, e.g. cinnamaldehyde. The azetidinones are useful chiral intermediates in an asymmetric synthesis of 1-carba(1-dethia)-3-hydroxy-3-cephem-4-carboxylic acids and esters and to monocyclic β-lactam antibiotics.

专利号:US-4870169-A
优先权日:1985-07-17
标 题:Intermediates for beta-lactam antibiotics
发明人：EVANS DAVID A; SJOGREN ERIC B
权利人:HARVARD COLLEGE
摘要:1-Benzyl(or substituted benzyl)-3β-[4(S)-aryloxazolidin-2-one-3-yl]-4β-(2-arylvinyl)azetidin-2-ones are provided via cycloaddition of a 4(S)-aryloxazolidin-2-one-3-ylacetyl halide and an imine formed with a benzylamine and a 3-arylacrolein, e.g. cinnamaldehyde. The azetidinones are useful chiral intermediates in an asymmetric synthesis of 1-carba(1-dethia)-3-hydroxy-3-cephem-4-carboxylic acids and esters and to monocyclic β-lactam antibiotics.

专利号:US-2023167149-A1
优先权日:2020-04-30
标 题:Cd33 ligands suitable for incorporation into carriers
发明人：MAGNANI JOHN L; PETERSON JOHN M; GHOSH INDRANATH
权利人:GLYCOMIMETICS INC
摘要:CD33 ligands which are useful for the synthesis of CD33 ligand-bearing carriers, wherein said CD33 ligand bearing carriers are directly or indirectly linked to or associated with at least one anti-cancer agent, are described herein. Uses of said CD33 ligand-bearing carriers for treating and/or preventing a disease, disorder, or condition such as acute myeloid leukemia (AML) are also described. The ligands have formula (I) below.

专利号:US-4665171-A
优先权日:1985-07-17
标 题:Process and intermediates for β-lactam antibiotics
发明人：EVANS DAVID A; SJOGREN ERIC B
权利人:UNIV HARVARD
摘要:1-Benzyl (or substituted benzyl)-3β-[4(S)-aryloxazolidin-2-one-3-yl]-4β-(2-arylvinyl)azetidin-2-ones are provided via cycloaddition of a 4(S)-aryloxazolidin-2-one-3-ylacetyl halide and an imine formed with a benzylamine and a 3-arylacrolein, e.g. cinnamaldehyde. The azetidinones are useful chiral intermediates in an asymmetric synthesis of 1-carba(1-dethia)-3-hydroxy-3-cephem-4-carboxylic acids and esters and to monocyclic β-lactam antibiotics.

专利号:CN-85102265-A
优先权日:1985-04-01
标 题:A new process for the synthesis of new indomethacin