3,3-dimethyl-1,2-bis(trimethylsilyl)cyclobutene | 36332-34-0

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: 3,3-dimethyl-1,2-bis(trimethylsilyl)cyclobutene
• 英文别名: {(3,3-Dimethylcyclobut-1-ene-1,2-diyl)bis(oxy)}bis(trimethylsilane)；(3,3-dimethyl-2-trimethylsilyloxycyclobuten-1-yl)oxy-trimethylsilane
• CAS: 36332-34-0
• 化学式: C₁₂H₂₆O₂Si₂
• 分子量: 258.508
• InChiKey: HUJVGEPXLBTWTL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.33
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.83
• 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：

  3,3-dimethyl-1,2-bis(trimethylsilyl)cyclobutene 在 甲醇 、 氢氟酸 、 三氯化硼 作用下， 反应 1.0h， 生成 (5R*,7S*)-2,2,7-trimethylspiro[4.5]decane-1,4-dione
  参考文献：
  名称：

  Geminal Acylation of Ketones Mediated by Boron Trichloride. An Improved Method for the Synthesis of 4,4-Dimethyl-1,3-cyclopentanediones

  摘要：

  DOI：

  10.1021/jo9806308
• 作为产物：
  描述：

  2,2-二甲基丁二酸二甲酯 、 三甲基氯硅烷 生成 3,3-dimethyl-1,2-bis(trimethylsilyl)cyclobutene
  参考文献：
  名称：

  WESTKAEMPER, RICHARD B.;ZENK, PAUL C., EUR. J. MED. CHEM., 23,(1988) N 3, C. 233-236

  摘要：

  DOI：

文献信息

• Reactions of 1,2-Bis(trimethylsilyloxy)cycloalkenes with the Diethyl Acetals of Aldehydes
  作者：Fuye Gao、D. Jean Burnell

  DOI：10.1021/jo051683+

  日期：2006.1.1

  Lewis acid-mediated reactions of 1,2-bis(trimethylsilyloxy)cyclobutene with acetals derived from a variety of aldehydes, followed by treatment with Amberlyst 15 resin in TFA, yielded 1,3-cyclopentanedione products, but reactions with 3,3-dimethyl-1,2-bis(trimethylsilyloxy)cyclobutene led to 1,2-cyclopentanediones. Reactions of 1,2-bis(trimethylsilyloxy)cyclopentene gave intermediates that did not undergo

  路易斯酸介导的1,2-双（三甲基甲硅烷氧基）环丁烯与衍生自多种醛的缩醛的反应，然后在TFA中用Amberlyst 15树脂处理，得到1,3-环戊二酮产品，但与3,3-二甲基反应-1,2-双（三甲基甲硅烷氧基）环丁烯生成1,2-环戊二酮。1,2-双（三甲基甲硅烷氧基）环戊烯的反应生成的中间体在TFA中与Amberlyst 15树脂没有发生骨架重排。
• Thrombin Inhibitors
  申请人：CHOBANIAN Harry

  公开号：US20150315141A1

  公开（公告）日：2015-11-05

  Compounds of the invention, which may be useful in inhibiting thrombin and associated thrombotic occlusions, have the following structure: or a pharmaceutically acceptable salt thereof, wherein m is 0 or 1; R is a heterocycle, —(CR 8 R 9 ) 1-2 NH 2 , or —(CR 8 R 9 ) 1-2 OH, wherein R 8 and R 9 , each time in which they occur, are independently H, C 1-6 alkyl, —CH 2 F, —CHF 2 , CF 3 or —CH 2 OH; W is a) —CHR 1 R 2 , where R 1 is —C(CH 3 ) 3 , and R 2 is —(CH 2 ) 1-2 OH, b) a 5- or 6-membered unsubstituted or substituted heterocycle having 1 or 2 heteroatoms selected from N and O, wherein substituted heterocycle is substituted with R 3 , c) a 9- or 10-membered unsubstituted or substituted heterocycle having 1 or 2 heteroatoms selected from N, O and S, wherein substituted heterocycle is mono-substituted with R 3 , or disubstituted with R 3 and R 4 , or d) a 3-, 4-, or 5-membered carbocyclic ring which is unsubstituted, mono-substituted with R 3 , di-substituted with R 3 and R 4 , or tri-substituted with R 3 , R 4 and R 5 ; R 3 is —CF 3 , —COOH, —COOR 7 , —C(O)R 6 , —CH(OH)R 6 , —CH 2 R 6 , R 6 , =O, halogen, R 7 , —OH, —NH 2 , or —NHSO 2 R 7 ; and R 10 is H or C 1-6 alkyl.

  本发明的化合物可用于抑制凝血酶和相关的血栓闭塞，具有以下结构：或其药学上可接受的盐，其中m为0或1；R是杂环，-(CR8R9)1-2NH2，或-(CR8R9)1-2OH，其中每次出现时R8和R9独立且为H、C1-6烷基、-CH2F、-CHF2、CF3或-CH2OH；W是a) -CHR1R2，其中R1为-C(CH3)3，R2为-(CH2)1-2OH，b) 1个或2个异原子从N和O中选择的5-或6-成员未取代或取代的杂环，其中取代的杂环取代为R3，c) 1个或2个异原子从N、O和S中选择的9-或10-成员未取代或取代的杂环，其中取代的杂环为单取代的R3，或双取代的R3和R4，或d) 未取代的3-、4-或5-成员碳环，单取代的R3，双取代的R3和R4，或三取代的R3、R4和R5；R3为-CF3、-COOH、-COOR7、-C（O）R6、-CH（OH）R6、-CH2R6、R6、=O、卤素、R7、-OH、-NH2或-NHSO2R7；R10为H或C1-6烷基。
• Elliott, Christine E.; Miller, David O.; Burnell, D. Jean, Journal of the Chemical Society. Perkin Transactions 1 (2001), 2002, vol. 2, # 2, p. 217 - 226
  作者：Elliott, Christine E.、Miller, David O.、Burnell, D. Jean

  DOI：——

  日期：——
• Geminal Acylation with Methyl-Substituted Analogues of 1,2-Bis[(trimethylsilyl)oxy]cyclobutene
  作者：Sheldon N. Crane、Tracy J. Jenkins、D. Jean Burnell

  DOI：10.1021/jo971055v

  日期：1997.12.1

  BF3 . Et2O-catalyzed geminal acylation of ketones and acetals with 3-methyl-1,2-bis[(trimethylsilyl)oxy)]cyclobutene (3) provided methylcyclopentanediones in yields that ranged from 40 to 94%. The best substrates were unhindered cyclohexanones. With acetals, stereochemical preferences in the initial Mukaiyama-like aldol step giving cyclobutanones translated into the stereochemistry of the ultimate cyclopentanedione products. With ketones, equilibration of the initial cyclobutanone compounds resulted in cyclopentanedione products with a different stereochemical preference. The gem-dimethylcyclobutene reagent 4 reacted with ketones to give gem-dimethylcyclopentanediones in modest yield. The process was much more stereochemically efficient than the reaction with 3. Rearrangement from the initial cyclobutanone compound was partially diverted toward air-sensitive 3-furanone compounds and ring-opened 1,2-diones. Only furanones (e.g., 52 and 53) were isolated from reactions with the tetramethylcyclobutene 51.
• Heine,H.-G.; Wendisch,D., Justus Liebigs Annalen der Chemie, 1976, p. 463 - 475
  作者：Heine,H.-G.、Wendisch,D.

  DOI：——

  日期：——