2-pyridyl pivalate | 59658-05-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 2-pyridyl pivalate
• 英文别名: Pyridin-2-yl 2,2-dimethylpropanoate
• CAS: 59658-05-8
• 化学式: C₁₀H₁₃NO₂
• 分子量: 179.219
• InChiKey: YCKZWZJJWVSHOG-UHFFFAOYSA-N

物化性质

• 沸点：
  256.6±13.0 °C(Predicted)
• 密度：
  1.055±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  39.2
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-甲基-2-丁醇 、 2-pyridyl pivalate 在 copper(ll) bromide 作用下， 以 乙腈 为溶剂， 反应 3.0h， 以75%的产率得到tert-Amyl pivalate
  参考文献：
  名称：

  Copper ion promoted esterification of (S)-2-pyridyl thioates and 2-pyridyl esters. Efficient methods for the preparation of hindered esters

  摘要：

  DOI：

  10.1021/jo00184a009
• 作为产物：
  描述：

  2-pyridyl chloroformate 、 三甲基乙酸 在 4-二甲氨基吡啶 、 三乙胺 作用下， 生成 2-pyridyl pivalate
  参考文献：
  名称：

  Convenient ketone synthesis by the reaction of organocuprate reagents with 2-pyridyl esters

  摘要：

  DOI：

  10.1021/jo00163a040

文献信息

• 4-(<i>N,N</i>-Dimethylamino)pyridine Hydrochloride as a Recyclable Catalyst for Acylation of Inert Alcohols: Substrate Scope and Reaction Mechanism
  作者：Zhihui Liu、Qiaoqiao Ma、Yuxiu Liu、Qingmin Wang

  DOI：10.1021/ol4030875

  日期：2014.1.3

  4-(N,N-Dimethylamino)pyridine hydrochloride (DMAP·HCl), a DMAP salt with the simplest structure, was used as a recyclable catalyst for the acylation of inert alcohols and phenols under base-free conditions. The reaction mechanism was investigated in detail for the first time; DMAP·HCl and the acylating reagent directly formed N-acyl-4-(N′,N′-dimethylamino)pyridine chloride, which was attacked by the

  具有最简单结构的DMAP盐4-（N，N-二甲基氨基）吡啶盐酸盐（DMAP·HCl）用作可循环使用的催化剂，用于在无碱条件下酰化惰性醇和酚。首次详细研究了反应机理。DMAP·HCl和酰化剂直接形成N-酰基-4-（N'，N'-二甲基氨基）吡啶氯化物，被亲核底物攻击形成过渡中间体，该中间体释放出酰化产物并再生DMAP·HCl催化剂。
• Proton and carbon nuclear magnetic resonance study on some n- and o-acyl derivatives of monohydroxypyridines
  作者：M.R. Del Giudice、G. Settimj、M. Delfini

  DOI：10.1016/0040-4020(84)85087-5

  日期：1984.1

  Comparative study on the proton and carbon NMR spectra for a series of N- and O-acyl substituted monohydroxypyridines (C5H4NOR: R=-H, -CHO, -COCH3, -COC(CH3)3, -COCF3, -COC6H5, -SO2CH3, -SO2C6H4CH3 is reported. p]Characteristic 1H, 13 NMR and IR spectral features allow simple and unambiguous distinction between the isomeric N- and/or O-acyl-derivatives of 2-, 3- and 4-hydroxypyridines, so that both

  一系列N和O-酰基取代的单羟基吡啶（C 5 H 4 NOR：R = -H，-CHO，-COCH 3，-COC（CH 3）3，-COCF的质子和碳NMR光谱的比较研究报道了3，-COC 6 H 5，-SO 2 CH 3，-SO 2 C 6 H 4 CH 3 [ p]特性1 H，13 NMR和IR光谱特征可对2-，3-和4-羟基吡啶的同分异构的N-和/或O-酰基衍生物进行简单而明确的区分，因此，由于互变异构，当互变异构发生平衡时，两种形式都可以清楚地鉴定出来。速度在NMR时间尺度上很慢
• From Esters to Ketones via a Photoredox‐Assisted Reductive Acyl Cross‐Coupling Strategy
  作者：Xiaoxiang Xi、Yixin Luo、Weirong Li、Minghao Xu、Hongping Zhao、Yukun Chen、Songlin Zheng、Xiaotian Qi、Weiming Yuan

  DOI：10.1002/anie.202114731

  日期：2022.1.17

  A photoredox-assisted reductive acyl cross-coupling reaction of two different carboxylic acid esters was developed for ketone synthesis. The reaction proceeded smoothly under mild conditions using Hantzsch ester (HE) as an organic reductant, with high chemoselectivity and functional group compatibility. A large range of aryl and 1°, 2°, 3°-acyl electrophiles, and 1°, 2°, 3°-alkyl radical precursors

  开发了两种不同羧酸酯的光氧化还原辅助还原酰基交叉偶联反应用于酮合成。以Hantzsch酯(HE)为有机还原剂，反应在温和条件下顺利进行，具有较高的化学选择性和官能团相容性。允许使用大范围的芳基和 1°、2°、3°-酰基亲电试剂，以及 1°、2°、3°-烷基自由基前体。
• A Facile Synthesis of Carboxamides by Dehydration Condensation Between Free Carboxylic Acids and Amines Using O,O'-Di(2-pyridyl) Thiocarbonate as a Coupling Reagent
  作者：Isamu Shiina、Katsuyuki Saitoh、Masakazu Nakano、Yoshihito Suenaga、Teruaki Mukaiyama

  DOI：10.1135/cccc20000621

  日期：——

  Carboxamides are prepared in high yields by dehydration condensation between nearly equimolar amounts of free carboxylic acids and amines both of which involve secondary or tertiary alkyl substituted ones with O,O'-di(2-pyridyl) thiocarbonate, a coupling reagent, in the presence of a catalytic amount of 4-(dimethylamino)pyridine.

  通过在存在催化剂4-(二甲氨基)吡啶的情况下，使用耦合试剂O，O'-二(2-吡啶基)硫代碳酸酯，在几乎等摩尔量的自由羧酸和胺之间进行脱水缩合，可以高产率地制备羧酰胺，其中羧酸和胺均为次级或三级烷基取代物。
• O-Acylation using organothallium compounds
  申请人：——

  公开号：US03947488A1

  公开（公告）日：1976-03-30

  Thallous salts of .beta.-dicarbonyl compounds, prepared by reaction of the .beta.-dicarbonyl compounds with a thallous alkoxide, are treated with alkyl halides to give C-alkyl products in high yield, with acyl halides at room temperature to give C-acyl products, and with acyl halides at low temperatures to give O-acyl products. Thallous phenolates are esterified with acyl or aroyl halides. Anhydrides are also prepared, as are biaryls and bi-sec-alkyls. N-Heterocyclics, including purines and pyrimidines, are N-alkylated. Lactams are O-acylated or N-alkylated.

  通过将.beta.-二羰基化合物与铊烷氧化物反应制备出铊盐，然后用烷基卤代物处理，可以高产得到C-烷基产物；室温下用酰卤代物处理可以得到C-酰基产物；低温下用酰卤代物处理可以得到O-酰基产物。铊酚盐可以与酰卤代物或芳酰卤代物酯化。还可以制备酐、联苯和双二级烷基。包括嘌呤和嘧啶在内的N-杂环化合物可以进行N-烷基化。内酰胺可以进行O-酰基化或N-烷基化。