O-tert-butyl-1-adamantylhydroxamic acid | 168139-37-5

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: O-tert-butyl-1-adamantylhydroxamic acid
• 英文别名: tert-butyl adamantan-1-carbohydroxamate；(3r,5r,7r)-N-(tert-butoxy)adamantane-1-carboxamide；N-[(2-methylpropan-2-yl)oxy]adamantane-1-carboxamide
• CAS: 168139-37-5
• 化学式: C₁₅H₂₅NO₂
• mdl: MFCD25784489
• 分子量: 251.369
• InChiKey: WRLIUHHRJUIBIF-UHFFFAOYSA-N

物化性质

• 密度：
  1.091±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.933
• 拓扑面积：
  38.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  O-tert-butyl-1-adamantylhydroxamic acid 在 N-溴代丁二酰亚胺(NBS) 作用下， 以 甲苯 为溶剂， 反应 12.0h， 以42%的产率得到tert-butyl adamantane-1-carboxylate
  参考文献：
  名称：

  通过串联NBS介导的氧化同质偶联和热脱氮作用将N-烷氧基酰胺直接转化为羧酸酯

  摘要：

  发现在甲苯中用NBS处理N-烷氧基酰胺可以方便地得到相应的羧酸酯，包括带有大体积或长链取代基的那些羧酸酯，令人满意的至优异的产率。该方法不仅代表通过氧化均偶联和随后的热脱氮将烷氧基酰胺部分直接转化为羧酸酯官能团的方便且经济的方法，而且还促进了位阻羧酸酯的合成。

  DOI：

  10.1021/jo401435v
• 作为产物：
  描述：

  O-叔丁基羟胺盐酸盐 、 金刚烷酰氯 在 吡啶 作用下， 以 四氢呋喃 为溶剂， 以78%的产率得到O-tert-butyl-1-adamantylhydroxamic acid
  参考文献：
  名称：

  Hindered ester formation by S_N2 azidation of N-acetoxy-N-alkoxyamides and N-alkoxy-N-chloroamides—novel application of HERON rearrangements

  摘要：

  在水合乙腈中，N-乙酸氧基-N-烷氧基酰胺或N-烷氧基-N-氯酰胺与叠氮化钠反应会导致氯的SN2取代，并形成反应性N-烷氧基-N-叠氮酰胺。对N-乙酸氧基-N-苄氧基苯甲酰胺的反应动力学进行了研究（k294 = 2 L mol⁻¹ s⁻¹），并在pBP/DN*//HF/6-31G*理论水平上对N-甲酸氧基-N-甲氧基甲酰胺的叠氮化反应进行了计算模拟。异头酰胺N-烷氧基-N-叠氮酰胺会自发地发生分子内分解，生成酯和两分子氮气。这一极放热过程促进了高阻碍酯的高产率形成。

  DOI：

  10.1039/b111250n

文献信息

• Direct Conversion of <i>N</i>-Alkoxyamides to Carboxylic Esters through Tandem NBS-Mediated Oxidative Homocoupling and Thermal Denitrogenation
  作者：Ningning Zhang、Rui Yang、Daisy Zhang-Negrerie、Yunfei Du、Kang Zhao

  DOI：10.1021/jo401435v

  日期：2013.9.6

  with NBS in toluene was found to conveniently afford the corresponding carboxylic esters, including those bearing a bulky or long-chain substituent, in satisfactory to excellent yields. This approach not only represents a convenient and economic approach to a direct transformation of an alkoxyamide moiety into the carboxylic ester functional group, via oxidative homocoupling and the subsequent thermal

  发现在甲苯中用NBS处理N-烷氧基酰胺可以方便地得到相应的羧酸酯，包括带有大体积或长链取代基的那些羧酸酯，令人满意的至优异的产率。该方法不仅代表通过氧化均偶联和随后的热脱氮将烷氧基酰胺部分直接转化为羧酸酯官能团的方便且经济的方法，而且还促进了位阻羧酸酯的合成。
• Copper-mediated oxidative homocoupling and rearrangement of N-alkoxyamides: an efficient method for the preparation of aromatic esters
  作者：Xiyan Duan、Kun Yang、Shuang Tian、Junying Ma、Yaning Li、Jiao Zou、Dongliang Zhang、Huanqing Cui

  DOI：10.1016/j.tetlet.2015.06.023

  日期：2015.7

  N-Alkoxyamides are successfully converted into their corresponding esters in a moderate to satisfactory yields via copper-catalyzed oxidative homocoupling and Heron rearrangement. The process tolerates a wide variety of functional groups and allows the synthesis of sterically hindered ester products not readily accessible by traditional acylation chemistry. A radical-mediated pathway has been tentatively

  N-烷氧基酰胺通过铜催化的氧化均偶联和鹭重排以中等至令人满意的产率成功地转化为其相应的酯。该方法可耐受多种官能团，并允许合成传统酰化化学方法不易获得的位阻酯产物。已经初步提出了自由基介导的途径用于氧化过程。
• Preparation and Thermal Decomposition of N,N'-Diacyl-N,N'-Dialkoxyhydrazines: Synthetic Applications and Mechanistic Insights
  作者：Mauro V. De Almeida、Derek H. R. Barton、Ian Bytheway、J. Albert Ferreira、Michael B. Hall、Wansheng Liu、Dennis K. Taylor、Lisa Thomson

  DOI：10.1021/ja00122a018

  日期：1995.5

  Oxidation of various O-alkyl hydroxamates 1 where R(1) was a keto-methoxime, benzoyl, aryl, or alkyl group with eerie ammonium nitrate (CAN) or nickel peroxide (NiO2 . H2O) leads to the corresponding esters in high yield. This augurs well for the facile synthesis of highly hindered esters. Dimers of type 2 were identified as intermediates in these oxidations, and a combination of experimental and theoretical results suggest that these dimers decompose in a stepwise 1,1-elimination manner via intermediate nitrenes to furnish the esters and not via a stepwise 1,2-elimination sequence as previously thought.
• Hindered ester formation by S_N2 azidation of N-acetoxy-N-alkoxyamides and N-alkoxy-N-chloroamides—novel application of HERON rearrangements
  作者：Stephen A. Glover、Guoning Mo

  DOI：10.1039/b111250n

  日期：——

  Treatment of N-acetoxy-N-alkoxyamides or N-alkoxy-N-chloroamides with sodium azide in aqueous acetonitrile results in SN2 displacement of chloride and the formation of reactive N-alkoxy-N-azidoamides. The reaction with N-acetoxy-N-benzyloxybenzamide has been studied kinetically (k294 = 2 L mol−1 s−1) and azidation of N-formyloxy-N-methoxyformamide has been modeled computationally at the pBP/DN*//HF/6-31G* level of theory. The anomeric amides N-alkoxy-N-azidoamides decompose intramolecularly and spontaneously to esters and two equivalents of nitrogen. This extremely exothermic process facilitates the formation, in excellent yields, of highly hindered esters.

  在水合乙腈中，N-乙酸氧基-N-烷氧基酰胺或N-烷氧基-N-氯酰胺与叠氮化钠反应会导致氯的SN2取代，并形成反应性N-烷氧基-N-叠氮酰胺。对N-乙酸氧基-N-苄氧基苯甲酰胺的反应动力学进行了研究（k294 = 2 L mol⁻¹ s⁻¹），并在pBP/DN*//HF/6-31G*理论水平上对N-甲酸氧基-N-甲氧基甲酰胺的叠氮化反应进行了计算模拟。异头酰胺N-烷氧基-N-叠氮酰胺会自发地发生分子内分解，生成酯和两分子氮气。这一极放热过程促进了高阻碍酯的高产率形成。
• An Electrochemical Method for Carboxylic Ester Synthesis from <i>N</i>-Alkoxyamides
  作者：Kripa Subramanian、Subhash L. Yedage、Bhalchandra M. Bhanage

  DOI：10.1021/acs.joc.7b01473

  日期：2017.10.6

  An electrochemical method for the synthesis of carboxylic as well as hindered esters from N-alkoxyamides has been reported. The electrochemical reaction proceeds through constant current electrolysis (CCE) by taking advantage of the dual role of n-Bu4NI (TBAI) as the redox catalyst as well as the supporting electrolyte. Besides providing mild reaction conditions, the present protocol is free from external

  已经报道了从N-烷氧基酰胺合成羧酸以及受阻酯的电化学方法。通过利用双重作用优点通过恒定电流电解（CCE）的电化学反应的进行Ñ -Bu 4 NI（TBAI）作为氧化还原催化剂，以及作为支持电解质。除了提供温和的反应条件外，本方案不含外部氧化剂和导电盐，从而产生氮作为无害副产物。另外，由于其反应时间短，底物范围宽和克级合成，因此开发的方法具有很高的优势。