2-azido-6-trifluoromethylpyridine | 94238-64-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 2-azido-6-trifluoromethylpyridine
• 英文别名: 6-trifluoromethyl-2-azidopyridine；2-azido-6-(trifluoromethyl)-pyridine；2-Azido-6-(trifluoromethyl)pyridine
• CAS: 94238-64-9
• 化学式: C₆H₃F₃N₄
• 分子量: 188.112
• InChiKey: GQYVZJJLTANSLQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  27.2
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2-azido-6-trifluoromethylpyridine 生成 1,3-diaza-4-trifluoromethylcyclohepta-1,2,4,6-tetraene
  参考文献：
  名称：

  Trifluoromethyl-substituted dehydrodiazepines and cyanopyrroles from azido-/tetrazolo-pyridines

  摘要：

  经鉴定，1,2-二氢-1,3-二氮杂卓 4D、5D、4,6D 和 5,6D 是叠氮/四唑吡啶光解和热解的独特产物；最终的热解产物是三氟甲基吡咯碳腈（7-9、11-13 和 16-18）。

  DOI：

  10.1039/c39920001062
• 作为产物：
  描述：

  2-肼基-6-三氟甲基吡啶 生成 2-azido-6-trifluoromethylpyridine
  参考文献：
  名称：

  Trifluoromethyl-substituted dehydrodiazepines and cyanopyrroles from azido-/tetrazolo-pyridines

  摘要：

  经鉴定，1,2-二氢-1,3-二氮杂卓 4D、5D、4,6D 和 5,6D 是叠氮/四唑吡啶光解和热解的独特产物；最终的热解产物是三氟甲基吡咯碳腈（7-9、11-13 和 16-18）。

  DOI：

  10.1039/c39920001062

文献信息

• 1H-1,3-Diazepines, 5H-1,3-diazepines, 1,3-diazepinones, and 2,4-diazabicyclo[3.2.0]heptenes,
  作者：Ales Reisinger、Rainer Koch、Paul V. Bernhardt、Curt Wentrup

  DOI：10.1039/b317099c

  日期：——

  Tetrazolo[1,5-a]pyridines/2-azidopyridines 1 undergo photochemical nitrogen elimination and ring expansion to 1,3-diazacyclohepta-1,2,4,6-tetraenes 3, which react with alcohols to afford 2-alkoxy-1H-1,3-diazepines 4 (5), with secondary amines to 2-dialkylamino-5H-1,3-diazepines 16, sometimes via isolable 2-dialkylamino-1H-1,3-diazepines 15, and with water to 1,3-diazepin-2-ones 19. The latter are also obtained by elimination of isobutene or propene from 2-tert-butoxy- or 2-isopropoxy-1H-1,3-diazepines 4 or 5. 1,3-Diazepin-2-one 22B and 1,3-diazepin-4-one 24 were obtained from hydrolysis of the corresponding 4-chlorodiazepines. Diazepinones 19 undergo photochemical ring closure to diazabicycloheptenones 25 in high yields. The 2-alkoxy-1H-1,3-diazepines 4 and 5 interconvert by rapid proton exchange between positions N1 and N3. The free energies of activation for the proton exchange were measured by the Forsén–Hoffman method as ΔG‡298 = 16.2 ± 0.6 kcal mol−1 as an average for 4a–c in CD2Cl2, acetone-d6, and methanol-d4, and 14.1 ± 0.6 kcal mol−1 for 4c in acetone/D2O. The structures of 2-methoxy-5,6-bis(trifluoromethyl)-1H-1,3-diazepine 4k, 1,2-dihydro-4-diethylamino-5H-1,3-diazepin-2-one 22bB, and diazabicycloheptanone 26 were determined by X-ray crystallography. The former represents the first reported X-ray crystal structure of any monocyclic N-unsubstituted 1H-azepine.

  Tetrazolo[1,5-a]吡啶/2-叠氮吡啶 1 经过光化学氮消除和环扩展，生成 1,3-二氮杂环庚-1,2,4,6-四烯 3，这些化合物与醇反应生成 2-烷氧基-1H-1,3-二氮唑 4 (5)，与二级胺反应生成 2-二烷基氨基-5H-1,3-二氮唑 16，有时通过可分离的 2-二烷基氨基-1H-1,3-二氮唑 15 进行反应，并与水反应生成 1,3-二氮唑-2-酮 19。后者也可通过从 2-叔丁氧基或 2-异丙氧基-1H-1,3-二氮唑 4 或 5 中消除异丁烯或丙烯来获得。1,3-二氮唑-2-酮 22B 和 1,3-二氮唑-4-酮 24 是通过水解相应的 4-氯二氮唑获得的。二氮唑酮 19 经过光化学环闭合生成高产率的二氮杂双环庚酮 25。2-烷氧基-1H-1,3-二氮唑 4 和 5 通过 N1 和 N3 位之间的快速质子交换互变。通过 Forsén–Hoffman 方法测定质子交换的活化自由能为 ΔG‡298 = 16.2 ± 0.6 kcal mol−1，作为 4a–c 在 CD2Cl2、氢代丙酮-d6 和氢代甲醇-d4 中的平均值，4c 在丙酮/D2O 中的值为 14.1 ± 0.6 kcal mol−1。2-甲氧基-5,6-双（三氟甲基）-1H-1,3-二氮唑 4k、1,2-二氢-4-二乙氨基-5H-1,3-二氮唑-2-酮 22bB 和二氮杂双环庚酮 26 的结构通过X射线晶体学确定。前者代表了第一个报道的任何单环 N-未取代 1H-氮唑的 X 射线晶体结构。
• Synthesis of 1H- and 5H-1,3-diazepines from azido- and tetrazolo-pyridines
  作者：Ales Reisinger、Curt Wentrup

  DOI：10.1039/cc9960000813

  日期：——

  Stable 1H-1,3-diazepines 7–9,10,13,14,17 and 19 are obtained, often in high yields, by photolysis of triflouoromethyl-substituted azido- or tetrazolo-pyridines in the presence of alcohols or amines; in some cases 5H-1,3-diazepines are also formed(11,21 and 23).

  稳定的1H-1,3-二氮杂环（7–9,10,13,14,17和19）通常通过在醇类或胺类存在下，对三氟甲基取代的叠氮或四唑吡啶进行光解反应获得，常常可以得到高产率；在某些情况下还会形成5H-1,3-二氮杂环（11,21和23）。
• 1-(Pyridyl)-1H-1,2,3-triazole derivatives, and use as herbicidal agents
  申请人：The Dow Chemical Company

  公开号：US04474599A1

  公开（公告）日：1984-10-02

  Compounds are prepared which correspond to the formula ##STR1## wherein R represents C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.12 alkoxyalkyl, --CH.sub.2 Ar, Ar'; Ar represents ##STR2## each X independently represents halo, C.sub.1 -C.sub.6 alkyl, --OCH.sub.3, --CF.sub.3, --OCF.sub.3, --NO.sub.2, --CN or --CO.sub.2 R.sup.2 ; each n independently represents 0, 1 or 2; Ar' represents ##STR3## R.sup.1 represents C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.2 -C.sub.6 alkynyl, C.sub.2 -C.sub.6 alkoxyalkyl, CF.sub.3 or Ar"; Ar" represents Ar, ##STR4## R.sup.2 represents C.sub.1 -C.sub.6 alkyl. These compounds have been found to be effective pre- and post-emergent herbicides and as active agents in herbicidal compositions.

  制备了符合以下式子的化合物：##STR1##其中R代表C.sub.1-C.sub.12烷基，C.sub.1-C.sub.12烷氧基烷基，--CH.sub.2 Ar，Ar'，Ar代表##STR2##每个X独立地代表卤素，C.sub.1-C.sub.6烷基，--OCH.sub.3，--CF.sub.3，--OCF.sub.3，--NO.sub.2，--CN或--CO.sub.2R.sup.2；每个n独立地代表0、1或2；Ar'代表##STR3##R.sup.1代表C.sub.1-C.sub.8烷基，C.sub.2-C.sub.6烯基，C.sub.2-C.sub.6炔基，C.sub.2-C.sub.6烷氧基烷基，CF.sub.3或Ar"；Ar"代表Ar，##STR4##R.sup.2代表C.sub.1-C.sub.6烷基。这些化合物已被发现是有效的前后除草剂，并作为除草剂组合物中的活性剂。
• Novel (1H-1,2,3-triazol-1-yl)pyridines
  申请人：The Dow Chemical Company

  公开号：US04775762A1

  公开（公告）日：1988-10-04

  Pyridine ring substituted (1H-1,2,3-triazol-1-yl)pyridines were prepared and found to have insecticidal utility. 2-Chloro-6-(1H-1,2,3-triazol-1-yl)pyridine, for example, was prepared from 2-azio-6-chloropyridine and methyl propiolate by sequential condensation, hydrolysis, and decarboxylation and found to control aster leafhoppers.

  取代了吡啶环的(1H-1,2,3-三唑-1-基)吡啶被制备出来，并发现具有杀虫效用。例如，2-氯-6-(1H-1,2,3-三唑-1-基)吡啶是通过顺序缩合、水解和脱羧反应从2-氮杂-6-氯吡啶和丙烯酸甲酯制备而成，发现可以控制紫菜叶蝉。
• 2-Pyridylnitrene−1,3-Diazacyclohepta-1,2,4,6-tetraene Rearrangements in the Trifluoromethyl-2-pyridyl Azide Series¹^a
  作者：Richard A. Evans、Ming Wah Wong、Curt Wentrup

  DOI：10.1021/ja9541645

  日期：1996.1.1

  Photolysis of Ar matrix isolated trifluoromethyl-substituted 2-pyridyl azides/tetrazolo[1,5-a]pyridines at 12-18 K causes rapid and mostly clean conversion to the corresponding 1,3-diazacyclohepta-1,2,4,6-tetraenes (4D, 5D, 5,6D, and 4,6D) absorbing near 2000 cm(-1) in the IR. In the latter case, the intermediate 3,5-bis(trifluoromethyl)-2-pyridylnitrene (4,6N) was observed by both ESR and IR spectroscopy and converted to the diazacycloheptatetraene 4,6D in the course of 90 min of UV irradiation. The 2-pyridylnitrenes were generally observable by ESR spectroscopy (\D/hc\similar to 1.05-1.10; \E/hc\similar to 0.0 cm(-1)) following both photochemical and thermal (FVP) generation from the 2-azidopyridines. Irradiation of the Ar matrix isolated mixtures of nitrenes and diazacycloheptatetraenes also caused development of weak carbene transitions (\D/hc\similar to 0.40-0.45;\E/hc\similar to 0.006 cm(-1)) in the ESR spectra.