4,4-dibenzyloxymethyl-1,6-heptadiyne | 169123-67-5

• 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: 4,4-dibenzyloxymethyl-1,6-heptadiyne
• 英文别名: [2-(Phenylmethoxymethyl)-2-prop-2-ynylpent-4-ynoxy]methylbenzene
• CAS: 169123-67-5
• 化学式: C₂₃H₂₄O₂
• 分子量: 332.442
• InChiKey: KEZJUZWWPQCOCO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  25
• 可旋转键数：
  10
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4,4-dibenzyloxymethyl-1,6-heptadiyne 在 cyclopentadienylruthenium(II) trisacetonitrile hexafluorophosphate 水 、 lithium hexamethyldisilazane 作用下， 以 四氢呋喃 、 丙酮 为溶剂， 反应 0.75h， 生成 2-[(E)-but-1-enyl]-4,4-bis(phenylmethoxymethyl)cyclopentene-1-carbaldehyde
  参考文献：
  名称：

  Ruthenium-Catalyzed Cycloisomerization−6π-Cyclization:  A Novel Route to Pyridines

  摘要：

  Herein we report a method for the synthesis of substituted pyridines. The unsaturated ketones and aldehydes derived from the cycloisomerization of primary and secondary propargyl diynols in the presence of [CpRu(CH3CN)(3)]PF6 (1) are converted to 1-azatrienes which in turn undergo a subsequent electrocyclization-dehydration to provide pyridines with excellent regiocontrol.

  DOI：

  10.1021/ol070163t
• 作为产物：
  描述：

  2,2-二丙炔基丙二酸二乙酯 、 alkaline earth salt of/the/ methylsulfuric acid 在 lithium aluminium tetrahydride 、 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 生成 4,4-dibenzyloxymethyl-1,6-heptadiyne
  参考文献：
  名称：

  Aldehyde Addition and Copper-Mediated Allylation of Bicyclic Alkoxytitanacyclopentenes and -Pentadienes:  New Selectivities and an Unusual Reaction

  摘要：

  Bicyclic titanacyclopentenes generated in situ from 1,6-enynes and (eta(2)-propene)Ti(O-i-Pr)(2) (1) reacted with aldehydes at their alkenyl-titanium bond in the absence or presence of Ti(O-i-Pr)(n)Cl(4-n) (n = 2 or 3) to give allyl alcohols such as 5-7 as a nearly single stereoisomer in good yields. Upon workup with DCl/D(2)O or iodine, deuterio and iodo derivatives, 8 and 9, were obtained. Bicyclic titanacyclopentadienes prepared analogously from 1,6- or 1,7-diynes and 1 also reacted with aldehydes in the presence of an additional equivalent of Ti(O-i-Pr)(2)Cl(2) to afford 1,2-dialkylidenecyclopentanes pr -cyclohexanes having an alcohol moiety in their side chain in good yields. In place of the simple hydrolysis, deuteriolysis or iodinolysis gave the corresponding derivatives such as 21 or 22. Treatment of 1,6-enyne 10 with 1 in the standard way and then with a slight excess of i-PrMgCl at -50 degrees C generated a new titanium species that, upon reaction with aldehydes, afforded unexpected adducts 34 and 41-45 virtually as a single isomer. Copper-mediated allylation of dialkoxytitanacyclopentene such as 3 with allyl bromide proceeded at their vinyl-titanium bond to give 48 and 50. Likewise, dialkoxytitanacyclopentadiene prepared from 29 and 1 underwent the regioselective copper-mediated mono-allylation to give a 9:1 mixture of 53 and 54. Upon workup with deuteriochloric acid, the corresponding deuterated product was obtained with a high degree of deuterium incorporation.

  DOI：

  10.1021/ja982501e

文献信息

• Practical Solvent-Free Ruthenium Trichloride-Mediated Benzannulation Approach to Fused Functionalized Arenes
  作者：Jeremy Jacquet、Anne-Laure Auvinet、Anil Kumar Mandadapu、Mansour Haddad、Virginie Ratovelomanana-Vidal、Véronique Michelet

  DOI：10.1002/adsc.201500186

  日期：2015.5.4

  The solvent‐ and ligand‐free [2+2+2] ruthenium‐promoted cycloaddition of α,ω‐diynes and alkynes provides a facile and efficient strategy for the synthesis of substituted benzene‐derived systems. The search for the optimal reaction conditions revealed the unprecedented catalytic activity of ruthenium trichloride for benzannulation reactions and this atom‐economical process allowed the synthesis of fused

  无溶剂和无配体的[2 + 2 + 2]钌促进的α，ω-二炔和炔烃的环加成反应为合成取代苯衍生的体系提供了便捷而有效的策略。对最佳反应条件的探索揭示了三氯化钌对苯环化反应具有空前的催化活性，并且这种原子经济的过程允许以高产率高收率地合成包括二氢苯并呋喃，异吲哚啉，茚满的稠合芳烃。该实用方案还引发了五取代芳族衍生物的制备，并被用于功能化杂环的1克级合成。
• Cyclization/Hydrosilylation of Functionalized Diynes Catalyzed by a Cationic Platinum Phenanthroline Complex
  作者：James W. Madine、Xiang Wang、Ross A. Widenhoefer

  DOI：10.1021/ol006901u

  日期：2001.2.1

  [figure: see text] A 1:1 mixture of the platinum phenanthroline complex (phen)PtMe2 and B(C6F5)3 catalyzed the cyclization/hydrosilylation of functionalized 1,6- and 1,7-diynes to form silylated 1,2-dialkylidenecycloalkanes in good yield and with high Z-selectivity.

  [图：见正文]铂菲咯啉配合物（phen）PtMe2和B（C6F5）3的1：1混合物催化官能化的1,6-和1,7-二炔的环化/氢化硅烷化反应，形成甲硅烷基化的1,2-二亚烷基环烷烃收率高，Z选择性高。
• Cyclization/Hydrosilylation of Functionalized 1,6-Diynes Catalyzed by Cationic Platinum Complexes Containing Bidentate Nitrogen Ligands
  作者：Xiang Wang、Harinath Chakrapani、James W. Madine、Michele A. Keyerleber、Ross A. Widenhoefer

  DOI：10.1021/jo015986p

  日期：2002.5.1

  and HSiEt(3) to form 1,1-dicarbomethoxy-3-methylene-4-(triethylsilylmethylene)cyclopentane (3) in 82% isolated yield with 26:1 Z:E selectivity. Platinum-catalyzed diyne cyclization/hydrosilylation tolerated a range of functional groups including esters, sulfones, acetals, silyl ethers, amides, and hindered ketones. Diynes that possessed propargylic substitution underwent facile cyclization/hydrosilylation

  铂二甲基二亚胺络合物[PhN [双键] C（Me）C（Me）[双键] NPh] PtMe（2）（4a）和B（C（6）F（5））的1：1混合物（3）催化二炔丙基丙二酸二甲酯（1）和HSiEt（3）的环化/氢化硅烷化反应以1,26：1的Z分离率82％形成1,1-二苯甲氧基-3-亚甲基-4-（三乙基甲硅烷基亚甲基）环戊烷（3） ：E选择性。铂催化的二炔环化/氢化硅烷化可耐受各种官能团，包括酯，砜，缩醛，甲硅烷基醚，酰胺和受阻酮。具有炔丙基取代的二炔容易进行环化/氢化硅烷化，以形成区域异构体混合物的甲硅烷基化的1,2-二亚烷基环戊烷。拥有电子不足的内部炔烃的二炔以中等收率进行环化/氢化硅烷化反应，形成甲硅烷基转移至取代程度较低的炔烃的产物。通过二炔环化/氢化硅烷化形成的甲硅烷基化的1,2-二亚烷基环戊烷经历了一系列转化，包括原去甲硅烷基化，Z / E异构化以及与二烯亲和性的[4 + 2]环加成。
• Selective Preparation of Benzyltitanium Compounds by the Metalative Reppe Reaction. Its Application to the First Synthesis of Alcyopterosin A
  作者：Ryoichi Tanaka、Yoshitaka Nakano、Daisuke Suzuki、Hirokazu Urabe、Fumie Sato

  DOI：10.1021/ja027008o

  日期：2002.8.1

  divalent titanium alkoxide reagent, Ti(O-i-Pr)4/2 i-PrMgCl, reacted with propargyl bromide to give directly benzyltitanium compounds. The resultant benzyltitanium compounds underwent deuteriolysis, iodinolysis (with I2), or oxygenation (with O2 gas) to give the corresponding deuterium-labeled compounds, iodides, or alcohols, illustrating their synthetic versatility. The first synthesis of alcyopterosin A

  二烷氧基钛环戊二烯由两种不同的乙炔和二价钛醇盐试剂 Ti(Oi-Pr)4/2 i-PrMgCl 制备，与炔丙基溴反应直接得到苄基钛化合物。得到的苄基钛化合物经过氘分解、碘分解（用 I2）或氧化（用 O2 气体）得到相应的氘标记化合物、碘化物或醇，说明了它们的合成多功能性。alcyopterosin A 的首次合成，一种最近分离和表征的双环芳香倍半萜类化合物，已通过这种方法实现，从乙炔和二炔的适当组合开始。
• Radical-Cascade Avenue for 3,4-Fused-Ring-Substituted Thiophenes
  作者：Abhijeet R. Agrawal、Neha Rani Kumar、Sashi Debnath、Sarasija Das、Chandan Kumar、Sanjio S. Zade

  DOI：10.1021/acs.orglett.8b01577

  日期：2018.8.17

  A single-step intramolecular radical cascade reaction of diynes and thioacetic acid in the presence of a catalytic amount of azobis(isobutyronitrile) as a radical initiator has been developed to synthesize thiophenes. This method allows easy and effective construction of a thiophene scaffold having 3,4-fused-ring substitution and unsubstituted 2,5-positions for further functionalization and polymerization

  已经开发出在催化量的偶氮二（异丁腈）作为自由基引发剂的存在下，二炔和硫代乙酸的单步分子内自由基级联反应以合成噻吩。该方法允许容易且有效地构建具有3，4-稠环取代和未取代的2，5-位的噻吩支架，用于进一步的官能化和聚合。使用该方法，合成了环戊[ c ]噻吩，3,4-乙撑二氧噻吩和含噻吩的螺环化合物的衍生物。