2-phosphino-4-methylaniline | 152435-11-5

• 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: 2-phosphino-4-methylaniline
• 英文别名: 4-methyl-2-phosphanylaniline；4-Methyl-2-phosphanylaniline
• CAS: 152435-11-5
• 化学式: C₇H₁₀NP
• 分子量: 139.137
• InChiKey: RCLNZJCXTYUBGV-UHFFFAOYSA-N

物化性质

• 沸点：
  263.0±33.0 °C(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  26
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-phosphino-4-methylaniline 在 甲醇 、 三甲基氯硅烷 、 potassium tert-butylate 、 叔丁基锂 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 水 、 甲苯 、 正戊烷 为溶剂， 反应 24.67h， 生成 1,5-dimethyl-1H-1,3-benzazaphosphole-2-carboxylic acid
  参考文献：
  名称：

  σ2-P Ligands: convenient syntheses of N-methyl-1,3-benzazaphospholes

  摘要：

  A convenient three-step route to 1,5-dimethyl-1,3-benzazaphosphole via Cu- or Pd-catalyzed phosphonylation of 2-iodo-4-methylaniline, reduction to 2-phosphino-4-methylaniline, and disproportionative cyclization with excess formaldehyde is reported. N-Methylbenzazaphospholes can be functionalized in the 2-position via alpha-CH-lithiation with tBuLi and are pi-acidic sigma P-2-ligands. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2012.07.037
• 作为产物：
  描述：

  2-溴-4-甲基苯胺 在 lithium aluminium tetrahydride 、 四(三苯基膦)钯 、 三乙胺 作用下， 以 乙醚 、 甲苯 为溶剂， 反应 86.0h， 生成 2-phosphino-4-methylaniline
  参考文献：
  名称：

  Solvent-controlled lithiation of PC–N-heterocycles: Synthesis of mono- and bis(trimethylsilyl)-tert-butyl-dihydrobenzazaphospholes – A new type of highly bulky and basic phosphine ligands

  摘要：

  The influence of solvents on the lithiation of N-methyl-1,3-benzazaphospholes is reported; these are accessible via catalytic phosphonylation of 2-bromoanilines, subsequent reduction to 2-phosphinoanilines and acid-catalysed disproportionative ring closure with excess paraformaldehyde. Reactions with tBuLi in polar solvents (THF, Et2O), particularly in the presence of tBuOK, lead to 2-lithiobenzazaphospholes (CH-lithiation) whereas hydrocarbons favour "normal" (hexane) or "inverse" (toluene) addition at the P=C bond. Reactive Li-species were trapped by ClSiMe3, present during the lithiation in hydrocarbons, and give rise to 2- and 3-trimethylsilyl-dihydro-1,3-benzazaphospholes, respectively. In hexane, via preferred lithiation of the primary adduct, the 2,2'-bis(trimethylsilyl)-dihydro-1,3-benzazaphosphole is the main product. 5-Methyl-1,3-benzazaphosphole, with NH function, reacts in toluene in the "normal" mode to 3-tert-butyl-1,2-bis(trimethylsilyl)-5-methyl-dihydrobenzazaphosphole. The sterically demanding tert-butyl and trimethylsilyl groups are arranged in anti-position as shown by crystal structure analyses, the second 2-SiMe3 group in gauche position. The P-tert-butyl-2,2'-bis(trimethylsilyl)-dihydrobenzazaphospholes represent a new type of sterically congested dialkylaryl phosphine ligands with increased basicity by the +I-effect of the silyl groups and +M-effect of the basic nitrogen in o-position. (C) 2014 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2014.04.014

文献信息

• π-Excess σ2P ligands: synthesis of biaryl-type 1,3-benzazaphosphole hybrid ligands and formation of P^P′–M(CO)4 chelate complexes
  作者：Basit Niaz、Mohammed Ghalib、Peter G. Jones、Joachim W. Heinicke

  DOI：10.1039/c3dt50981h

  日期：——

  aldehyde. N-Secondary 2-phosphanylanilines 5 also react with aldehydes to form the corresponding N-substituted benzazaphospholes 6. The formation of (P^P′)M(CO)4-chelate complexes 8a (M = Cr) and 9a,b (M = Mo) was demonstrated by reaction with M(CO)4(norbornadiene). The crystal structure of 9a, determined in addition to the solution structure elucidation by multinuclear NMR spectra, confirms the chelate

  2- phosphanylanilines酸催化cyclocondensations 1与取代的苯甲醛或杂芳基醛打开到新的联芳基型1一个方便的途径ħ -1,3- benzazaphosphole混合配体2A-F与ö -phosphanylphenyl，吡啶基，咪唑基，噻吩基或ö -甲氧基苯基供体基团（除σ 2 P供体）和对溴苯基取代的benzazaphospholes 2克，H。过量的醛导致伴随的还原性N-烷基化，如2h以外的3h的形成所示。反应通过二氢苯并氮杂唑4进行，可以在温和的条件下检测到。芳香性驱动的脱氢作用不会释放出二氢，而是通过转移加氢（主要是通过还原某些醛）来完成的。N-仲2-膦基苯胺5也与醛反应形成相应的N-取代的苯并氮杂磷6。通过与M（CO）4（降冰片二烯）反应证明了（P ^ P'）M（CO）4螯合物8a（M = Cr）和9a，b（M = Mo ）的形成。9a的晶体结构，
• NOVEL BIPHENYL COMPOUND OR SALT THEREOF
  申请人：Taiho Pharmaceutical Co., Ltd.

  公开号：EP3632897A1

  公开（公告）日：2020-04-08

  The present invention provides a compound represented by Formula (I) or a salt thereof; an LSD1 inhibitor that contains the compound or a salt thereof as an active ingredient; a pharmaceutical composition that contains the compound or a salt thereof; and an antitumor agent that contains the compound or a salt thereof as an active ingredient.

  本发明提供了一种由式（I）代表的化合物或其盐类；一种含有该化合物或其盐类作为活性成分的 LSD1 抑制剂；一种含有该化合物或其盐类的药物组合物；以及一种含有该化合物或其盐类作为活性成分的抗肿瘤剂。
• Coplanar Tetracyclic π‐Excess σ ² P Ligands
  作者：Basit Niaz、Fatima Iftikhar、Markus K. Kindermann、Peter G. Jones、Joachim Heinicke

  DOI：10.1002/ejic.201300342

  日期：2013.8.12

  AbstractThe acid‐catalyzed reactions of 5‐methyl‐2‐phosphanylaniline (1) with dialdehydes were studied. Whereas the reaction with glyoxal provides a mixture of two 1H‐1,3‐benzazaphospholes, 2 and 3, by concomitant reduction of a CHO group and C–C bond cleavage, respectively, the reaction with o‐phthalic dicarbaldehyde provided in excellent yield the tetracyclic planar benzazaphosphole 4, which was characterized by crystal structure analysis. The active hydrogen atoms, delivered by aromatization of a dihydrobenzazaphosphole intermediate, forms an N–CH2 bridge by reductive N‐alkylation. Pyridine‐2,6‐dicarbaldehyde reacts analogously but not chemoselectively and, thus, gives two isomers 5 and 6. Condensation with pyridine‐2,6‐dicarbaldehyde afforded the bis(benzazaphosphole)pyridine pincer ligand 7, but along with 2‐(benzazaphospholyl)‐6‐tolylpyridine (8) by partial P–C bond cleavage. The high upfield 31P NMR chemical shift of 4 compared to those of normal benzazaphospholes indicates it to be a particularly π‐rich σ2P ligand.
• Solvent-controlled lithiation of PC–N-heterocycles: Synthesis of mono- and bis(trimethylsilyl)-tert-butyl-dihydrobenzazaphospholes – A new type of highly bulky and basic phosphine ligands
  作者：Mohammed Ghalib、Peter G. Jones、Joachim W. Heinicke

  DOI：10.1016/j.jorganchem.2014.04.014

  日期：2014.8

  The influence of solvents on the lithiation of N-methyl-1,3-benzazaphospholes is reported; these are accessible via catalytic phosphonylation of 2-bromoanilines, subsequent reduction to 2-phosphinoanilines and acid-catalysed disproportionative ring closure with excess paraformaldehyde. Reactions with tBuLi in polar solvents (THF, Et2O), particularly in the presence of tBuOK, lead to 2-lithiobenzazaphospholes (CH-lithiation) whereas hydrocarbons favour "normal" (hexane) or "inverse" (toluene) addition at the P=C bond. Reactive Li-species were trapped by ClSiMe3, present during the lithiation in hydrocarbons, and give rise to 2- and 3-trimethylsilyl-dihydro-1,3-benzazaphospholes, respectively. In hexane, via preferred lithiation of the primary adduct, the 2,2'-bis(trimethylsilyl)-dihydro-1,3-benzazaphosphole is the main product. 5-Methyl-1,3-benzazaphosphole, with NH function, reacts in toluene in the "normal" mode to 3-tert-butyl-1,2-bis(trimethylsilyl)-5-methyl-dihydrobenzazaphosphole. The sterically demanding tert-butyl and trimethylsilyl groups are arranged in anti-position as shown by crystal structure analyses, the second 2-SiMe3 group in gauche position. The P-tert-butyl-2,2'-bis(trimethylsilyl)-dihydrobenzazaphospholes represent a new type of sterically congested dialkylaryl phosphine ligands with increased basicity by the +I-effect of the silyl groups and +M-effect of the basic nitrogen in o-position. (C) 2014 Elsevier B.V. All rights reserved.
• σ2-P Ligands: convenient syntheses of N-methyl-1,3-benzazaphospholes
  作者：Mohammed Ghalib、Basit Niaz、Peter G. Jones、Joachim W. Heinicke

  DOI：10.1016/j.tetlet.2012.07.037

  日期：2012.9

  A convenient three-step route to 1,5-dimethyl-1,3-benzazaphosphole via Cu- or Pd-catalyzed phosphonylation of 2-iodo-4-methylaniline, reduction to 2-phosphino-4-methylaniline, and disproportionative cyclization with excess formaldehyde is reported. N-Methylbenzazaphospholes can be functionalized in the 2-position via alpha-CH-lithiation with tBuLi and are pi-acidic sigma P-2-ligands. (C) 2012 Elsevier Ltd. All rights reserved.