化学合成。
化学合成
合成路线 1(1. 合成:53215-95-5)
产率:89%
合成条件:With potassium carbonate In acetonitrile at 20℃; for 12 h;
实验步骤:通用方法:苄胺衍生物的单独溶液(24.3mmol,37(2.6g),28.0mmol,38(3.4g),28.0mmol,39(3.8g),11.2mmol,40(1.4g),11.2mmol,41( 2.0g))在含有K 2 CO 3(5.2g(37.4mmol)37,2.5g(46.7mmol)38-39和2.6g(18.7mmol)40-41)和Me 3 SiCH 2 I(4.0g(4.0g)的乙腈(120mL)中的溶液 将18.5mmol(37.59g)(38.4mmol)(38-39)和2.0g(9.3mmol(40-41))在室温下搅拌12小时,真空浓缩,得到残余物,将其用CH 2 Cl 2研磨。 将研磨物干燥并真空浓缩,得到残余物,将其进行硅胶柱色谱(EtOAc:己烷= 1:8~1:15),得到421(3.2g,89%),43(3.85g,79%)。 ,442(3.3g,63%),45(1.51g,76%)和46(1.9g,78%)。
参考文献:
- [1] Tetrahedron Letters, 2015, vol. 56, # 23, p. 3014 - 3018 [2] Organic and Biomolecular Chemistry, 2016, vol. 14, # 44, p. 10502 - 10510 [3] Tetrahedron Letters, 2017, vol. 58, # 10, p. 949 - 954 [4] Tetrahedron, 2017, vol. 73, # 44, p. 6249 - 6261
合成路线 2(2. 合成:53215-95-5)
产率:93.3%
合成条件:at 20 - 120℃; for 24 h;
实验步骤:将苄胺(59.516g,549.84mmol)和(氯甲基) - 三甲基硅烷(23.410g,187.02mmol)的混合物在120℃下加热4小时,然后在室温下搅拌20小时。 向混合物中加入78.328g碳酸钾的200ml水溶液,用乙醚(2×30ml)萃取。 用硫酸钠干燥有机层。 除去溶剂和干燥剂,得到无色液体。 使用Vigreux柱蒸馏出过量的苄胺(38-45℃/ 0.36mm Hg)。 得到35.500g无色液体形式的标题产物(产率93.3%)。 1 H NMR(300MHz,CDCl 3):δ7.32-7.24(m,5H),3.76(s,2H),2.06(s,2H),0.07(s,9H)。
参考文献:
- [1] Tetrahedron, 1996, vol. 52, # 16, p. 5669 - 5682 [2] Patent: WO2014/24125, 2014, A1. Location in patent: Page/Page column 24 [3] European Journal of Medicinal Chemistry, 2010, vol. 45, # 5, p. 1717 - 1723 [4] Bioorganic and Medicinal Chemistry Letters, 2009, vol. 19, # 21, p. 6038 - 6041 [5] Patent: US2006/128789, 2006, A1. Location in patent: Page/Page column 7 [6] Organic Process Research and Development, 2005, vol. 9, # 2, p. 193 - 197 [7] Journal of Organic Chemistry, 2001, vol. 66, # 7, p. 2526 - 2529 [8] Journal of the American Chemical Society, 2011, vol. 133, # 26, p. 10184 - 10194 [9] Patent: CN104817549, 2017, B. Location in patent: Paragraph 0027-0030 [10] Journal of the Chemical Society - Perkin Transactions 1, 1998, # 22, p. 3867 - 3872 [11] Tetrahedron Letters, 2014, vol. 55, # 8, p. 1491 - 1495 [12] Journal of Organic Chemistry, 1996, vol. 61, # 10, p. 3362 - 3374 [13] Tetrahedron, 1985, vol. 41, # 17, p. 3529 - 3535 [14] Journal of Organic Chemistry, 1985, vol. 50, # 21, p. 4006 - 4014 [15] Zeitschrift fuer Chemie (Stuttgart, Germany), 1974, vol. 14, # 7, p. 289 - 290 [16] Tetrahedron Letters, 1983, vol. 24, # 33, p. 3447 - 3450 [17] Tetrahedron, 1994, vol. 50, # 27, p. 8185 - 8194 [18] Synthesis, 2001, # 8, p. 1263 - 1267 [19] Patent: US4994486, 1991, A [20] Patent: US2006/63761, 2006, A1. Location in patent: Page/Page column 6; 13 [21] Journal of Organic Chemistry, 2012, vol. 77, # 24, p. 11071 - 11078 [22] Patent: WO2014/39489, 2014, A1. Location in patent: Page/Page column 86; 87 [23] Synlett, 2016, vol. 27, # 2, p. 282 - 286