2-pentyl-4H-chromen-4-one | 130418-82-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 2-pentyl-4H-chromen-4-one
• 英文别名: 2-Pentylchromen-4-one
• CAS: 130418-82-5
• 化学式: C₁₄H₁₆O₂
• 分子量: 216.28
• InChiKey: GQCICUULWHYWTB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-pentyl-4H-chromen-4-one 在 (R)-(+)-5,5'-双[二(3,5-二甲苯基)膦]-4,4'-二-1,3-苯并二茂 、 diethoxymethylsilane 、 copper diacetate 作用下， 以 四氢呋喃 为溶剂， 以93%的产率得到
  参考文献：
  名称：

  通过铜催化的色酮和硫代色酮的不对称共轭还原，高度对映选择性地获得手性色酮和硫代色酮

  摘要：

  苯并二氢吡喃酮骨架是杂环化学和药物发现中的特权结构。开发了一种高效的铜催化色酮共轭不对称共轭还原反应，可制得具有良好收率（80–99％）和出色的ee值（94–> 99％ee）的手性发色酮。尤其值得注意的是，使用这种方法还可以以74-87％的收率和96-97％的ee制备手性硫代铬酮。已建立的不对称合成方法为进一步的药物研究铺平了道路。

  DOI：

  10.1039/c7cc03939e
• 作为产物：
  描述：

  4, 6-dimethoxy-1,3,5-triazinal-2-yl 2-acetoxybenzoate 在 哌嗪 、 palladium diacetate 作用下， 以 乙腈 为溶剂， 反应 20.5h， 生成 2-pentyl-4H-chromen-4-one
  参考文献：
  名称：

  Pd catalyzed couplings of “superactive esters” and terminal alkynes: Application to flavones and γ-benzopyranones construction

  摘要：

  Lewis base, N-methylmorpholine (NMM) accelerated Pd-catalyzed Sonogashira coupling of steric hindered super active esters, la-le, and terminal alkynes. This approach provided an efficient synthetic protocol for a broad array of acylated o-alkynoylphenols compounds, 3a-3e, under moderate conditions. The mechanistic study clearly demonstrated that NNM stabilized the catalytic palladium species, and accelerated the leaving of triazine moiety during the catalytic cycle of the cross-coupling reactions. In addition, piperazine was found to efficiently catalyze the 6-endo cyclization of acylated o-alkynoylphenols, which achieved the diversity oriented synthesis of gamma-benzopyranones, 4aa-4eg, with 93-99% yields. (C) 2016 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcata.2016.10.030

文献信息

• [EN] ALLOSTERIC CHROMENONE INHIBITORS OF PHOSPHOINOSITIDE 3-KINASE (PI3K) FOR THE TREATMENT OF DISEASES ASSOCIATED WITH P13K MODULATION<br/>[FR] INHIBITEURS CHROMÉNONE ALLOSTÉRIQUES DE LA PHOSPHOINOSITIDE 3-KINASE (PI3K) POUR LE TRAITEMENT DE MALADIES ASSOCIÉES À LA MODULATION DE PI3K
  申请人：PETRA PHARMA CORP

  公开号：WO2021202964A1

  公开（公告）日：2021-10-07

  The disclosure relates to compounds of Formula (I) as allosteric chromenone inhibitors of phosphoinositide 3-kinase (PI3K) useful in the treatment of diseases or disorders associated with PI3K modulation, Formula (I), or a prodrug, solvate, enantiomer, stereoisomer, tautomer, or pharmaceutically acceptable salt thereof, wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, W, X, Y, s, and Ring A are as described herein.

  该披露涉及到式(I)的化合物，作为磷脂酰肌醇3-激酶（PI3K）的变构色酮抑制剂，在与PI3K调节相关的疾病或紊乱的治疗中有用，式(I)，或其前药、溶剂化合物、对映体、立体异构体、互变异构体或其药学上可接受的盐，其中R1、R2、R3、R4、R5、R6、R7、R8、R9、W、X、Y、s和环A如本文所述。
• Ruthenium-Catalyzed C–H Activation of Salicylaldehyde and Decarboxylative Coupling of Alkynoic Acids for the Selective Synthesis of Homoisoflavonoids and Flavones
  作者：Gabriel Charles Edwin Raja、Ji Yeon Ryu、Junseong Lee、Sunwoo Lee

  DOI：10.1021/acs.orglett.7b03325

  日期：2017.12.15

  Homoisoflavonoids were formed in DMSO exclusively, and flavones were formed in t-AmOH when salicylaldehyde and alkynoic acids reacted with [Ru(p-cymene)Cl2]2 and CsOAc. They were formed through C–H activation of salicylaldehyde and decarboxylative coupling of alkynoic acid. This reaction system showed good yields, broad substrate scope, and good functional group tolerance. It was found that chalcone

  当水杨醛和炔酸与[Ru（p- cymene）Cl 2 ] 2和CsOAc反应时，仅在DMSO中形成同黄酮，在t- AmOH中形成黄酮。它们是通过水杨醛的C–H活化和炔酸的脱羧偶联而形成的。该反应体系显示出良好的收率，广泛的底物范围和良好的官能团耐受性。发现查耳酮是均异黄酮和黄酮形成的中间体。
• Ru(<scp>ii</scp>)-Catalyzed C–H activation and annulation of salicylaldehydes with monosubstituted and disubstituted alkynes
  作者：Swagata Baruah、Partha Pratim Kaishap、Sanjib Gogoi

  DOI：10.1039/c6cc07204f

  日期：——

  The Ru(II)-catalyzed C-H activation and annulation reaction of salicylaldehydes and disubstituted alkynes affords chromones in high yields. This reaction works with terminal alkynes also and tolerates wide range of sensitive...

  Ru（II）催化的水杨醛与双取代炔烃的CH活化和环化反应可高产率地提供色酮。该反应还可与末端炔烃一起使用，并能耐受各种敏感的...
• Rh-Catalyzed aldehydic C–H alkynylation and annulation
  作者：Maddali L. N. Rao、Boddu S. Ramakrishna

  DOI：10.1039/c9ob02670c

  日期：——

  aldehydic C-H bond alkynylation and annulation for the in situ synthesis of chromones and aurones are described. It involves the sequential aldehyde C-H bond alkynylation of salicylaldehyde with in situ generated 1-bromoalkyne from 1,1-dibromoalkene followed by annulation. This protocol shows good functional group tolerance including aryl, alkenyl, alkyl and heteroaryl-1,1-dibromoalkenes. The steric/electronic

  描述了新颖的Rh催化醛CH键炔化和环化原位合成色酮和aurones。它涉及水杨醛与由1,1-二溴烯烃原位生成的1-溴炔烃进行的连续醛CH键炔化反应，然后进行环化。该协议显示出良好的官能团耐受性，包括芳基，烯基，烷基和杂芳基-1,1-二溴烯烃。在邻位羟基炔酮的碱介导的原位环化过程中证明了空间/电子效应，以生成金酮。
• Syntheses of chromones and quinolones via pd-catalyzed carbonylation of o-iodophenols and anilines in the presence of acetylenes
  作者：Sigeru Torii、Hiroshi Okumoto、Long He Xu、Masahiro Sadakane、Michel V. Shostakovsky、Andrew B. Ponomaryov、Valery N. Kalinin

  DOI：10.1016/s0040-4020(01)80421-x

  日期：1993.7

  Synthesis of 2-substituted chromones and quinolones has been performed by a Pd-catalyzed carbonylation of o-iodophenols or o-iodoanilines in the presence of terminal acetylenes in a high yield through coupling of halides and acetylenes followed by cyclization as a one-pot reaction.

  的2-取代的色酮类和喹诺酮类合成已经通过钯催化的羰基被执行ö -iodophenols或ø在以高收率终端乙炔的存在下通过-iodoanilines卤化物和乙炔的耦合作为一锅反应，接着环化。