2-bis(methylthio)methylidene-1-benzosuberone | 67702-76-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-bis(methylthio)methylidene-1-benzosuberone
• 英文别名: 6-[bis(methylsulfanyl)methylidene]-8,9-dihydro-7H-benzo[7]annulen-5-one
• CAS: 67702-76-5
• 化学式: C₁₄H₁₆OS₂
• 分子量: 264.412
• InChiKey: FNBSALSDMDMOQA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  17
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  67.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-bis(methylthio)methylidene-1-benzosuberone 在 sodium tetrahydroborate 作用下， 以 乙醇 为溶剂， 反应 2.0h， 生成 6-[bis(methylsulfanyl)methylidene]-5,7,8,9-tetrahydrobenzo[7]annulen-5-ol
  参考文献：
  名称：

  Polarized ketene dithioacetals. 28. A new general highly stereoselective and regiospecific method for homologation of ketones to .alpha.,.beta.-unsaturated esters via .alpha.-oxoketene dithioacetals

  摘要：

  DOI：

  10.1021/jo00174a032
• 作为产物：
  描述：

  二硫化碳 、 1-苯并环庚酮 、 碘甲烷 在 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 以65%的产率得到2-bis(methylthio)methylidene-1-benzosuberone
  参考文献：
  名称：

  3-(1-Piperazinyl)-4,5-dihydro-1H-benzo[g]indazoles: high affinity ligands for the human dopamine D4 receptor with improved selectivity over ion channels

  摘要：

  3-(4-Piperidinyl)-5-arylpyrazole such as 1, were selective for the cloned human dopamine Dq receptor (hD(4)), but also showed affinity at voltage sensitive calcium, sodium and potassium ion channels. A combination of substituent changes to reduce the basicity of the piperidine nitrogen and conformational restriction to give 4,5-dihydro-1H-benzo[g]indazoles reduced this ion channel affinity at the expense of selectivity for hD4 over other dopamine receptors. Incorporation of piperazine into the 4,5-dihydro-1H-benzo[g]indazoles in place of piperidine gave a novel series of high affinity, selective, orally bioavailable hD(4) ligands, such as 16, with improved selectivity over ion channels. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0968-0896(98)00028-5

文献信息

• Cyclocondensation of 2-lithiomethylthiazoles and 2-lithiomethylthiazoline with α-oxoketene dithioacetals: synthesis of substituted and annelated thiazolo- and dihydrothiazolo[3,2-a]pyridinium compounds
  作者：Abraham Thomas、Hiriyakkanavar Ila、Hiriyakkanavar Junjappa

  DOI：10.1016/s0040-4020(01)86767-3

  日期：——

  The oxoketene dithioacetals 1 undergo regioselective 1,2-addition with 2-lithiomethyl-4-methylthiazole (2a) and 2-lithiomethylthiazoline (3) to afford the carbinol acetals 4 which on borontrifluoride etherate assisted cyclization yield the corresponding substituted and annelated 3-methyl-5- methylthiothiazolo[3,2-a.] pyridinium tetrafluoroborates (5a-g, 8a,b,10,12) and the dihydro derivatives (23-25)

  氧杂环丁烯二硫缩醛1与2-lithiomethyl-4-甲基噻唑（2a）和2-lithiomethylthiazoline（3）进行区域选择性1,2-加成，得到甲醇缩醛4，该缩醛4在三氟化硼醚化物协助下环化生成相应的取代和退火的3-甲基-5-甲基硫代噻唑并[3,2-a。]四氟硼酸吡啶鎓（5a-g，8a，b，10,12）和二氢衍生物（23-25）的收率很高。然而，相应的2-甲基-5-苯基噻唑（16）经历了核和侧链的去质子化，并在相似的反应条件下产生了产物的混合物。
• Attempted Simmons-Smith reaction on α-oxoketene dithioacetals: A new general route to 3,4-substituted and annelated thiophenes
  作者：Laxminarayan Bhat、Abraham Thomas、Hiriyakkanavar Ila、Hiriyakkanavar Junjappa

  DOI：10.1016/s0040-4020(01)88342-3

  日期：1992.11

  A new general synthesis of 3- and 3,4-substituted 4a–q, 3,4-annelated 7a–d and condensed tricyclic 9a–e thiophenes has been developed through Simmons-Smith reaction on the respective α-oxoketene dithioacetals. Extension of the reaction to α-cinnamoylketene dithioacetals 10a–e and its higher enyl analogs 13a–d, 15a–c gave the corresponding 3-styryl 11a–e and 3-di- and trienyl 14a–d, 16a–c thiophenes

  通过Simmons-Smith反应在相应的α-氧杂环丁烯二硫缩醛上开发了3和3,4-取代的4a-q，3,4-退火的7a-d和稠合的三环9a-e噻吩的新的一般合成物。将反应扩展至α-肉桂酰基烯酮二硫缩醛10a-e及其高级烯基类似物13a-d，15a-c，可得到相应的3-苯乙烯基11a-e和3-二-和三烯基14a-d，16a-c噻吩区域选择性方式。已经提出了一种可能的机制，该机制涉及通过二价硫上的类胡萝卜素亚甲基插入而形成的基分子的不寻常的分子内羟醛缩合。
• Cyclocondensation of α-oxoketene dithioacetals with β-lithioamino-β- substituted acrylonitriles:synthesis of 2,6-substituted and 5,6-annelated 3-cyano-4- (methylthio) pyridines
  作者：Arun K. Gupta、Hiriyakkanavar Ila、Hiriyakkanavar Junjappa

  DOI：10.1016/s0040-4020(01)81540-4

  日期：1990.1

  The lithiated β-amino-β-substituted acrylonitriles 4a-d generated in situ by reaction of lithioacetonitrile with either acetonitrile or substituted nitriles undergo cyclocondensation with α-oxoketenedithioacetals through 1,4-addition to afford 2,6-substituted and 5,6-annelated-4-(methylthio)-3-cyanopyridines 6a-m, 11a-h and 12a-b in good yields. A few of the 2,6-diheterylpyridines 6n-q were also synthesized

  通过硫代乙腈与乙腈或取代的腈反应原位生成的锂化的β-氨基-β-取代的丙烯腈4a-d通过1,4-加成与α-氧杂环丁二硫缩醛进行环缩合，得到2,6-取代的和5,6-使4-（甲硫基）-3-氰基吡啶6a-m，11a-h和12a-b退火。按照该方法，还合成了一些2,6-二杂基吡啶6n-q。另一方面，将相应的α-肉桂酰基12a-c和α-（5-芳基-2,4-戊二烯酰基）（12d）酮二硫缩醛与4a环合，得到相应的4-芳基-（或4-苯乙烯基-6- [2-双（甲硫基）乙烯基] -3-氰基吡啶14a-d具有良好的产率。
• Regio- and chemoselective conjugate 1,4-reduction of α-oxoketene dithioacetals with sodium borohydride and sodium cyanoborohydride
  作者：Ch. Srinivasa Rao、R.T. Chakrasali、Hiriyakkanavar Ila、Hiriyakkanavar Junjappa

  DOI：10.1016/s0040-4020(01)89784-2

  日期：1990.1

  Theα-oxoketene dithioacetals are shown to undergo conjugate 1,4-reduction in highly regio- and chemoselective manner with sodium borohydride in acetic acid to afford the corresponding β-oxodithioacetals in good yields. These results have been rationalized according to HSAB principle in terms of 'hard soft affinity inversion' concept. The reduction of with sodium cyanoborohydride also proceeds in 1

  已显示α-氧杂环丁烯二硫缩醛与乙酸中的硼氢化钠以高度区域选择性和化学选择性的方式进行共轭1,4-还原，从而以良好的收率得到相应的β-氧二硫缩醛。根据“硬软亲和力反演”概念，根据HSAB原理对这些结果进行了合理化。用氰基硼氢化钠还原也以1，4-共轭加成-消除的方式进行，以良好的收率得到相应的乙烯基硫醇酯。
• Cycloaromatization ofα-oxoketene dithioacetals with lithioacetonitrile and lithiopropionitrile: a facile route to substituted and annelated pyridines
  作者：Arun K. upta、Hiriyakkanavar Ila、Hiriyakkanavar Junjappa

  DOI：10.1016/s0040-4020(01)82036-6

  日期：1990.1

  1,3-MeS shift in the presence of phosphoric acid to afford a variety of substituted and annelated 2,6-bis(methylthio)pyridines 3 and 4 respectively in good yields. Cyclization of 2 in the presence of bromine and acetic acid yielded the corresponding 2-bromo-6- methylthio-4,5-substituted and annelated pyridines 9 in good yields. The bis(methylthio) groups in 3 could either be removed with Raney Nickel

  通过将1,2-硫代乙腈或硫代丙腈加到α-氧杂环丁烯二硫缩醛1上而得到的烯醇缩醛2在磷酸存在下发生分子内Ritter反应，伴随着1,3-MeS的转变，从而得到各种取代的和退火的2， 6-双（甲硫基）吡啶3和4分别具有良好的收率。在溴和乙酸的存在下将2环化，以良好的产率得到相应的2-溴-6-甲硫基-4,5-取代的和退火的吡啶9。3中的双（甲硫基）基团可以用阮内镍（Raney Nickel）除去或在三苯基膦-氯化镍氯化物络合物存在下用甲基取代，从而以高收率得到相应的脱硫（8）或甲基化（15）吡啶。尝试将烯醇缩醛2a环化，