1-Diazo-4-(2-methylphenyl)butan-2-one | 90266-00-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 1-Diazo-4-(2-methylphenyl)butan-2-one
• 英文别名: 1-diazo-4-(2-methylphenyl)butan-2-one；(1E)-1-diazo-4-(2-methylphenyl)butan-2-one
• CAS: 90266-00-5
• 化学式: C₁₁H₁₂N₂O
• 分子量: 188.229
• InChiKey: PNUHICIXXBYRSV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  19.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-Diazo-4-(2-methylphenyl)butan-2-one 在 rhodium(II) acetate dimer 、 水 作用下， 以 乙醇 、 二氯甲烷 为溶剂， 生成 8-methylspiro[2,4-dihydro-1H-naphthalene-3,5'-imidazolidine]-2',4'-dione
  参考文献：
  名称：

  Structure–Activity relationship of linear peptide Bu-His-DPhe-Arg-Trp-Gly-NH2 at the human melanocortin-1 and -4 receptors: histidine substitution

  摘要：

  Systematic substitution of His(6) residue using non-selective hMC4R pentapeptide agonist (Bu-His(6)-DPhe(7)-Arg(8)-Trp(9)-Gly(10)- NH2) as the template led to the identification of Bu-Atc(6)(2-aminotetraline-2-carboxylic acid)-DPhe(7)-Arg(8)-Trp(9)-Gly(10)-NH2 which showed moderate selectivity towards hMC4R over hMC1R. Further SAR studies resulted in the discovery of Penta-5-BrAtc(6)-DPhe(7)-Arg(8)-Trp(9)-Gly(10)-NH2 and Penta-5-Me(2)NMAtc(6)-DPhe(7)-Arg(8)-Trp(9)-Gly(10)-NH2 which are potent hMC4R agonists and are inactive in hMC1R, hMC3R and hMC5R agonist assays. (C) 2002 Published by Elsevier Science Ltd.

  DOI：

  10.1016/s0960-894x(02)00830-2
• 作为产物：
  描述：

  2-甲基氢肉桂酸 在 氯化亚砜 作用下， 以 乙醚 、 甲苯 为溶剂， 生成 1-Diazo-4-(2-methylphenyl)butan-2-one
  参考文献：
  名称：

  Structure–Activity relationship of linear peptide Bu-His-DPhe-Arg-Trp-Gly-NH2 at the human melanocortin-1 and -4 receptors: histidine substitution

  摘要：

  Systematic substitution of His(6) residue using non-selective hMC4R pentapeptide agonist (Bu-His(6)-DPhe(7)-Arg(8)-Trp(9)-Gly(10)- NH2) as the template led to the identification of Bu-Atc(6)(2-aminotetraline-2-carboxylic acid)-DPhe(7)-Arg(8)-Trp(9)-Gly(10)-NH2 which showed moderate selectivity towards hMC4R over hMC1R. Further SAR studies resulted in the discovery of Penta-5-BrAtc(6)-DPhe(7)-Arg(8)-Trp(9)-Gly(10)-NH2 and Penta-5-Me(2)NMAtc(6)-DPhe(7)-Arg(8)-Trp(9)-Gly(10)-NH2 which are potent hMC4R agonists and are inactive in hMC1R, hMC3R and hMC5R agonist assays. (C) 2002 Published by Elsevier Science Ltd.

  DOI：

  10.1016/s0960-894x(02)00830-2

文献信息

• Regiospecific synthesis of α-(phenylthio)cycloalkenones and of α-phenyl-α-(phenylthio) ketones VIA αα-addition of phenylsulphenyl chloride to ∢-diazoketones
  作者：M.Anthony McKervey、Pinit Ratananukul

  DOI：10.1016/s0040-4039(00)81343-x

  日期：1983.1

  phenylsulphenyl chloride at room temperature to furnish α-chloro-α-(phenylthio)cycloalkanones which undergo ready dehydrochlorination to α-(phenylthio)cycloalkenones when treated with triethylamine; acyclic, terminal α-diazoketones also furnish α-chloro-α-(phenylthio)adducts which are useful electrophiles in the synthesis of α-phenyl-α-(phenylthio)ketones.

  在室温下，环状α-二氮酮与苯磺酰氯反应生成α-氯-α-（苯硫基）环链烷酮，当用三乙胺处理时，α-氯代-α-（苯硫基）环烯酮易于脱氯化氢成α-（苯硫基）环烯酮。无环末端α-二氮酮还提供α-氯代-α-（苯硫基）加合物，它们在合成α-苯基-α-（苯硫基）酮中是有用的亲电子试剂。
• Efficient synthesis of bicyclo[5.3.0]decatrienones and of 2-tetralones via rhodium(<scp>II</scp>) acetate-catalysed cyclisation of α-diazoketones derived from 3-arylpropionic acids
  作者：M. Anthony McKervey、Sarbajna M. Tuladhar、M. Fiona Twohig

  DOI：10.1039/c39840000129

  日期：——

  Rhodium (II) acetate-catalysed cyclisation of α-diazoketones derived from 3-arylpropionic acid produces bicyclo[5.3.0]decatrienones or 2-tetralones depending on the substitution pattern of the aryl ring: the former products are transformed into the latter by catalytic amount of trifluoroacetic acid.

  乙酸铑（II）催化的3-芳基丙酸衍生的α-二氮酮的环化反应会生成双环[5.3.0]癸二酮或2-四氢萘酮，具体取决于芳基环的取代方式：前者通过催化转化为后者适量的三氟乙酸。
• The intramolecular Buchner reaction of aryl diazoketones. Substituent effects and scope in synthesis
  作者：Michael Kennedy、M. Anthony McKervey、Anita R. Maguire、Sarbajna M. Tuladhar、M. Fiona Twohig

  DOI：10.1039/p19900001047

  日期：——

  cyclisation occurring in all cases. When the precursor contains a meta-methoxy substituent, 2-tetralones are obtained directly. The efficient conversion of 3-phenylpropionic acid into trans-1-methylbicyclo[5.3.0]decan-2-one is also described, partial asymmetric synthesis having been realised through the use of rhodium (S)-mandelate as the cyclisation catalyst. Cyclisations of diazoketones derived from

  根据前驱体中芳基环的取代方式，由铑（II）乙酸催化的3-芳基丙酸衍生的α-二氮酮的环化反应会生成双环[5.3.0]癸二酮或2-四氢萘酮。前者的产物用三氟乙酸催化转化为后者。已经检测了具有甲基，甲氧基和乙酰氧基取代基的前体，在所有情况下均发生有效的环化。当前体含有间-甲氧基取代基时，直接获得2-四氢萘酮。还描述了将3-苯基丙酸有效转化为反-1-甲基双环[5.3.0]癸烷-2-酮，已通过使用铑实现了部分不对称合成（S-扁桃酸酯作为环化催化剂。还研究了由4-苯基丁酸和5-苯基戊酸衍生的重氮酮的环化。前者为双环[5.4.0]十一烷体系提供了新的入口，而后者通过CH的插入产生了2,3-二取代的环戊酮。讨论了稠环系统中环庚三烯-降二十碳烯平衡的各个方面。
• Selective linear peptides with melanocortin-4 receptor (MC4-R) agonist activity
  申请人：——

  公开号：US20010056179A1

  公开（公告）日：2001-12-27

  Peptides of formulae I, II and III selectively activate melanocortin-4 (MC-4) receptor activity. 1

  公式I、II和III的肽选择性地激活黑色素皮质素-4（MC-4）受体活性。
• Selective cyclic peptides with melanocortin-4 receptor (MC4-R) agonist activity
  申请人：——

  公开号：US20020143141A1

  公开（公告）日：2002-10-03

  Peptides cyclized via disulfide or lactam bridges having melanocortin-4 receptor (MC4-R) agonist activity useful for treatment of obesity.

  经过二硫键或内酰胺桥环化的肽具有黑色素皮质激素受体（MC4-R）激动剂活性，适用于治疗肥胖症。