CN110759836B - 一种在丙酮诱导下对烯烃或者炔烃进行氟烷基化的方法 - Google Patents

一种在丙酮诱导下对烯烃或者炔烃进行氟烷基化的方法 Download PDF

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CN110759836B
CN110759836B CN201911061480.1A CN201911061480A CN110759836B CN 110759836 B CN110759836 B CN 110759836B CN 201911061480 A CN201911061480 A CN 201911061480A CN 110759836 B CN110759836 B CN 110759836B
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贺春阳
毛婷
赵亮
李晓飞
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Abstract

本申请公开了有机合成技术领域中的一种使用丙酮为溶剂同时充当电子给体化合物进行氟烷基化的方法,具体地说,该方法由简单易得的烯烃/炔烃和碘代氟烷基化合物为原料,在可见光照射下,创新性的选用廉价绿色的丙酮充当溶剂以及电子给体化合物,高收率地得到多种氟烷基取代的烯烃和烷烃及其衍生物的方法。该方法反应体系简单,原子经济性优异,具有十分优异的官能团兼容性,以及高的立体选择性。

Description

一种在丙酮诱导下对烯烃或者炔烃进行氟烷基化的方法
技术领域
本发明涉及有机合成技术领域,具体涉及一种在丙酮诱导下对烯烃或者炔烃进行氟烷基化的方法。
背景技术
由于氟特殊的性质,含氟有机物在生命科学、生物医药、材料科学有着十分广泛的应用。因此发展高效简洁的新型方法学合成含氟的有机化合物是目前的有机氟化学重点研究方向。
烯烃、炔烃是一类常见、廉价并且十分重要的化合物,对烯烃进行二氟烷基化反应是获取一些重要的生物药物中间体(ChemMedChem,2009,4(3),329-334;PCT Int.Appl.,2015042397,26Mar 2015)的重要方法,尤其是利用碘二氟乙酸乙酯(B-1)对烯烃、炔烃进行1,2-加成,可以直接得到含氟氨基酸以及合成含氟氨基酸的重要中间体(C、E)。此外,由于目标产物能进行多种转化,以氟烷基碘代物和相关化合物作为原料的原子转移自由基加成(ATRA)是对不饱和键的氟烷基化的重要策略。
Figure BDA0002258070360000011
式一:ATRA对不饱和键的氟烷基化及其进一步转化
通常,这一策略的实现是通过Na2S2O4、过氧化物、Et3B或紫外线等自由基引发剂来实现的,但这一方法仅仅适用于有限的烯烃结构(式二,方程式1,Ref:Tetrahedron,2007,63,10684;Chin.J.Chem.,1990,4,350;Tetrahedron Lett.,1989,30,3159;Tetrahedron,2009,65,478;J.Org.Chem.,2004,69,6658.)。在过去几年中,通过过渡金属(式二,方程式2,Org.Lett.,2017,19,4187;Angew.Chem.Int.Ed.,2014,53,4910;Angew.Chem.Int.Ed.,2015,54,1270;Chem.-Eur.J.,2016,22,12646.)或可见光(式二,方程式3,J.Org.Chem.,2017,2017,2126;Org.Lett.,2017,19,5653;Chem.-Eur.J.,2017,23,10962;Org.Lett.,2017,19,4295;ACS Cat.,2017,7,7136;Chem.Comm.,2014,50,12884.)引发氟烷基自由基已成为烯烃和炔烃的氟烷基化更加高效的策略。
Figure BDA0002258070360000021
式二:对不饱和键进行氟烷基化的方法
然而,这种策略仍有几个问题需要解决,例如(1)需要使用昂贵的金属催化剂如Pd、Ni、Ru、Ir等;(2)有些方法使用的催化剂需要在手套箱里操作如Fe2+,Cu1+;(3)有些催化体系需要配合昂贵的N、P配体一起使用。因此发展廉价、易得、操作简便的催化体系依然是十分必要的。在此,创新性的发展了一种使用丙酮为溶剂同时充当电子给体化合物进行氟烷基化,高收率地得到多种氟烷基取代的烯烃和烷烃及其衍生物的方法。该方法反应十分绿色,原子经济性好,同时具有十分优异的官能团兼容性,以及高的立体选择性。这一新的催化体系可以适用于多种反应类型,得到的产物在生命科学、医药、以及材料科学有着十分广泛的应用。
发明内容
本发明意在提供新型的烯烃、炔烃类化合物氟烷基化的方法,以解决现有技术在合成该类化合物面临的官能团兼容性差或者需要使用昂贵的催化剂的问题。
一种在丙酮诱导下对烯烃或者炔烃进行氟烷基化的方法,包括步骤:于惰性气体中,光照条件下,以丙酮为溶剂,在碱存在下,将式A化合物/式D化合物与式B化合物进行反应,从而形成式C化合物/式E化合物;
Figure BDA0002258070360000022
上述各式中,R1为C1-15烷基、苯基取代的C1-15烷基、羟基取代的C1-15烷基、酯基取代的C1-15烷基或酰胺取代的C1-15烷基;
R2为C1-15烷基、苯基取代的C1-15烷基、卤代的C1-15烷基、C1-5烷基取代的苯基、三氟甲基取代的苯基、卤素取代的苯基、C1-5烷氧基取代的苯基、醛基取代的苯基或硝基取代的苯基。
Rf为CF2COOEt或CnF2n+1(n=2-8)。
在另一优选例中,所述式A化合物/式D化合物、碱、式B化合物的摩尔比为1:0~3:1~4。更优选为1:1-2:1.5-3。
在另一优选例中,所述的反应在可见光照射下进行。更优选的所述可见光为蓝光或者紫光。
在另一优选例中,反应在0~50℃下进行,较佳地反应在20~40℃下进行,更优选的反应在25℃下进行。
在另一优选例中,所述的碱选自碳酸盐、羧酸盐或者磷酸盐。更优选为碳酸盐。更优选为碳酸钾。
本发明还有一个目的是提供一些新化合物,所述化合物为化合物C-1、化合物C-3、化合物C-4、化合物C-5、化合物C-7、化合物C-8、化合物C-13、化合物C-15、化合物E-2、化合物E-9、化合物E-10、化合物E-11、化合物E-12、化合物E-13、化合物E-14、化合物E-15和化合物E-16,上述化合物的结构式分别为:
Figure BDA0002258070360000031
Figure BDA0002258070360000041
上述化合物在医药、农药或者材料中有潜在的应用。
发明人通过长期深入的研究,发现了一种不饱和烃,即烯烃、炔烃类化合物氟烷基化的方法,于惰性气体中,在蓝光照射下,以丙酮为溶剂的同时充当电子给体化合物。该方法所选用的原料和催化剂都来自于廉价的工业原料,具有十分优异的经济性;同时该反应体系具有十分优异的官能团兼容性、合成简便性、适合大规模生产等优点。
本发明的有益效果:(1)本方法所选用的原料和催化剂都来自于工业原料,同时使用光来促进反应,反应过程使用绿色的溶剂丙酮,并且仅仅添加了碱就可以使得反应顺利进行。经济、绿色、环保适合大规模的生产。(2)该反应具有十分优异的官能团兼容性以及反应多样性,一些用常规方法难以合成的底物,用本方法都能高效的合成。(3)本方法合成的部分产物在生物医药有着十分重要的应用,并且所得的产物可以通过简单的转化得到多种的衍生物。
应理解,在本发明范围内中,本发明的上述各技术特征和在下文(如实施例)中具体描述的各技术特征之间都可以互相组合,从而构成新的或优选的技术方案。限于篇幅,在此不再一一赘述。
术语:如本文所用,术语“C1-15烷基”指具有1-15个碳原子的直链或支链烷基,例如甲基、乙基、丙基、异丙基、丁基、异丁基、仲丁基、叔丁基、戊基、己基、庚基、辛基、壬基、癸基或类似基团。
术语“C1-15烷氧基”指具有1-15个碳原子的直链或支链烷氧基,例如甲氧基、乙氧基、丙氧基、异丙氧基、丁氧基、异丁氧基、仲丁氧基、叔丁氧基或类似基团。
术语“卤素”指氟、氯、溴或碘。
术语“卤代的”指基团中的H被相同或不同的一个或多个卤素原子所取代,例如三氟甲基、五氟乙基、三氟甲氧基、二氟乙烯基或类似基团。
具体实施方式
本发明提供了一种在丙酮诱导下对烯烃或者炔烃进行氟烷基化的方法,包括步骤:一定温度下(在未限定的情况下,实施例的反应温度为25℃),在可见光中的照射下,以丙酮为溶剂以及电子给体化合物,在碱存在下,将式A化合物/式D化合物与式B化合物进行反应,从而形成式C化合物/式E化合物;
Figure BDA0002258070360000051
各式中,R1、R2、Rf定义如前所述。
更优选地,所述的式A化合物、式D化合物选自下组的化合物:
Figure BDA0002258070360000052
其中,所述的式B化合物优选为选自下组的化合物:
B-1:ICF2CO2Et;B-2:IC4F9;B-3:IC6F13
本发明式A化合物和式B化合物可通过市售或本发明所属领域技术人员所熟知的方法制备获得,然而该方法的具体条件,例如反应物、溶剂、所用化合物的量、反应温度、反应所需时间等不限于下面的解释。
本发明所述的碱包括:碳酸盐、磷酸盐或羧酸盐;优选为碳酸盐。更优选为碳酸钾。
所述的反应体系中,式A化合物或式B化合物的反应浓度为0.01~1mmol/mL;优选地,为0.1~0.5mmol/mL。
可以根据需要对本发明制备得到的式C化合物或者E化合物进行进一步的修饰从而制备得到各类功能性化合物。
本发明制备方法制得的产物可以通过多种方法进行分离纯化,所述方法包括:重结晶、柱层析等。以上纯化方法均为本领域的常规方法,例如,进行重结晶时,可采用极性溶剂与非极性溶剂的混合溶剂,优选为乙酸乙酯-石油醚,乙醇-石油醚等混和溶剂。使用柱层析时,所用的展开剂可单一的溶剂,也可采用混合溶剂,例如石油醚或乙酸乙酯-石油醚的混合溶剂等。
本发明提到的上述特征,或实施例提到的特征可以任意组合。本案说明书所揭示的所有特征可与任何组合物形式并用,说明书中所揭示的各个特征,可以被任何提供相同、均等或相似目的的替代性特征取代。因此除有特别说明,所揭示的特征仅为均等或相似特征的一般性例子。
下面结合具体实施,进一步阐述本发明。应理解,这些实施例仅用于说明本发明而不用于限制本发明的范围。下列实施例中未注明具体条件的实验方法,通常按照常规条件,或按照制造厂商所建议的条件。除非另外说明,否则百分比和份数按重量计算。
以下实施例中均采用本领域常规的后处理方法进行纯化。
实施例1-5
Figure BDA0002258070360000061
向25mL的反应管中,分别加入(0.30mmol)下列碱,47.2mg(0.30mmol,1当量)化合物A-1,氩气置换三次后加入2mL丙酮(Acetone),注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物C-1,产率如下(氟谱产率)。1H NMR(400MHz,CDCl3)δ5.01(br,1H),4.33(q,J=7.2Hz,2H),4.31-4.23(m,1H),3.58-3.35(m,2H),2.85-2.70(m,2H),1.43(s,9H),1.35(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-109.7(dt,J=264.3Hz,15.0Hz,1F),-113.4(dt,J=264.3Hz,16.5Hz,1F).C-1为新化合物。
表1
Figure BDA0002258070360000071
实施例6-7
Figure BDA0002258070360000072
向25mL的反应管中,分别加入(0.60mmol)下列碱,47.2mg(0.30mmol,1当量)化合物A-1,氩气置换三次后加入2mL丙酮(Acetone),注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物C-1,产率如下(氟谱产率,括号内为分离产率)。1H NMR(400MHz,CDCl3)δ5.01(br,1H),4.33(q,J=7.2Hz,2H),4.31-4.23(m,1H),3.58-3.35(m,2H),2.85-2.70(m,2H),1.43(s,9H),1.35(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-109.7(dt,J=264.3Hz,15.0Hz,1F),-113.4(dt,J=264.3Hz,16.5Hz,1F).C-1为新化合物。
表2
Figure BDA0002258070360000073
实施例8-9
Figure BDA0002258070360000074
向25mL的反应管中,加入或不加入82.9mg(0.60mmol)K2CO3,加入47.2mg(0.30mmol,1当量)化合物A-1,氩气置换三次后加入2mL丙酮(Acetone),注射66μL(0.45mmol)化合物B-1,避光或在蓝光照射下搅拌16小时后,得化合物C-1,产率如下(氟谱产率)。1H NMR(400MHz,CDCl3)δ5.01(br,1H),4.33(q,J=7.2Hz,2H),4.31-4.23(m,1H),3.58-3.35(m,2H),2.85-2.70(m,2H),1.43(s,9H),1.35(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-109.7(dt,J=264.3Hz,15.0Hz,1F),-113.4(dt,J=264.3Hz,16.5Hz,1F).C-1为新化合物。
表3
Figure BDA0002258070360000081
实施例10-16
Figure BDA0002258070360000082
向25mL的反应管中,分别加入82.9mg(0.60mmol)K2CO3,47.2mg(0.30mmol,1当量)化合物A-1,氩气置换三次后加入2mL丙酮(Acetone),注射66μL(0.45mmol)化合物B-1,在以下7个短波波段照射下搅拌16小时后,得化合物C-1,产率如下(氟谱产率,括号内为分离产率)。1H NMR(400MHz,CDCl3)δ5.01(br,1H),4.33(q,J=7.2Hz,2H),4.31-4.23(m,1H),3.58-3.35(m,2H),2.85-2.70(m,2H),1.43(s,9H),1.35(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-109.7(dt,J=264.3Hz,15.0Hz,1F),-113.4(dt,J=264.3Hz,16.5Hz,1F).C-1为新化合物。
表4
Figure BDA0002258070360000083
Figure BDA0002258070360000091
实施例17-19
Figure BDA0002258070360000092
向25mL的反应管中,分别加入82.9mg(0.60mmol)K2CO3,47.2mg(0.30mmol,1当量)化合物A-1,氩气置换三次后加入2mL丙酮(Acetone),注射66μL(0.45mmol)化合物B-1,在以下三种温度环境下搅拌16小时后,得化合物C-1,产率如下(氟谱产率,括号内为分离产率)。1HNMR(400MHz,CDCl3)δ5.01(br,1H),4.33(q,J=7.2Hz,2H),4.31-4.23(m,1H),3.58-3.35(m,2H),2.85-2.70(m,2H),1.43(s,9H),1.35(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-109.7(dt,J=264.3Hz,15.0Hz,1F),-113.4(dt,J=264.3Hz,16.5Hz,1F).C-1为新化合物。
表5
Figure BDA0002258070360000093
实施例20
Figure BDA0002258070360000094
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射47μL(0.30mmol,1当量)化合物A-2,注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物C-2,产率为78%。1H NMR(400MHz,CDCl3)δ4.34(q,J=7.2Hz,2H),4.25-4.19(m,1H),2.98-2.67(m,2H),1.86-1.68(m,2H),1.57-1.46(m,1H),1.37(t,J=7.2Hz,3H),1.40-1.22(m,7H),0.89(t,J=6.6Hz,3H).19F NMR(376MHz,CDCl3)δ-109.4(ddd,J=262.8Hz,18.4Hz,12.8Hz,1F),-114.0(dt,J=262.8Hz,17.3Hz,1F).
实施例21
Figure BDA0002258070360000101
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射31μL(0.30mmol,1当量)化合物A-3,注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物C-3,产率为62%。1H NMR(400MHz,CDCl3)δ4.34(q,J=7.2Hz,2H),4.30-4.20(m,1H),3.68(t,J=6.2Hz,2H),3.00-2.84(m,1H),2.82-2.67(m,1H),1.91-1.84(m,2H),1.86-1.76(m,1H),1.71-1.61(m,1H),1.36(t,J=7.2Hz,3H).19FNMR(376MHz,CDCl3)δ-101.2–-102.8(m,1F),-105.8–-107.5(m,1F).C-3为新化合物。
实施例22
Figure BDA0002258070360000102
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射33μL(0.30mmol,1当量)化合物A-4,注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物C-4,产率为85%。1H NMR(400MHz,CDCl3)δ4.39-4.28(m,4H),4.27-4.20(m,1H),2.92-2.72(m,2H),2.11(s,3H),1.37(t,J=7.0Hz,3H).19F NMR(376MHz,CDCl3)δ-110.3(ddd,J=265.5Hz,18.0Hz,13.2Hz,1F),-113.3(dt,J=265.8Hz,16.9Hz,1F).C-4为新化合物。
实施例23
Figure BDA0002258070360000111
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射41μL(0.30mmol,1当量)化合物A-5,注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物C-5,产率为96%。1H NMR(400MHz,CDCl3)δ4.34(q,J=7.2Hz,2H),4.28-4.19(m,1H),2.93-2.70(m,2H),1.84-1.60(m,5H),1.37(t,J=7.0Hz,3H),1.42-1.04(m,5H),0.90-0.80(m,1H).19F NMR(376MHz,CDCl3)δ-102.3(ddd,J=261.7Hz,17.3Hz,13.5Hz,1F),-107.3(dt,J=261.3Hz,17.3Hz,1F).C-5为新化合物。
实施例24
Figure BDA0002258070360000112
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射40μL(0.30mmol,1当量)化合物A-6,注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物C-6,产率为84%。1H NMR(400MHz,CDCl3)δ7.38-7.27(m,3H),7.20(d,J=7.2Hz,2H),4.40-4.30(m,1H),4.34(q,J=7.2Hz,2H),3.30-3.16(m,2H),3.00-2.72(m,2H),1.37(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-101.8(dt,J=175.6Hz,10.5Hz,1F),-106.4(dt,J=175.6Hz,11.3Hz,1F).
实施例25
Figure BDA0002258070360000113
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射46μL(0.30mmol,1当量)化合物A-7,注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物C-7,产率为91%。1H NMR(400MHz,CDCl3)δ7.11(d,J=8.6Hz,2H),6.86(d,J=8.6Hz,2H),4.34(q,J=7.2Hz,2H),4.29(m,1H),3.80(s,3H),3.21-3.11(m,2H),2.96-2.70(m,2H),1.36(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-101.7(ddd,J=263.2Hz,16.5Hz,13.5Hz,1F),-106.5(dt,J=263.2Hz,16.9Hz,1F).C-7为新化合物。
实施例26
Figure BDA0002258070360000121
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射49μL(0.30mmol,1当量)化合物A-8,注射88μL(0.60mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物C-8,产率为73%。1H NMR(400MHz,CDCl3)δ7.97-7.86(m,2H),7.82(d,J=8.0Hz,1H),7.60-7.48(m,2H),7.48-7.40(m,1H),7.39-7.34(m,1H),4.63-4.52(m,1H),4.35-4.20(m,2H),3.75-3.65(m,2H),3.13-2.78(m,2H),1.30(t,J=7.0Hz,3H).19F NMR(376MHz,CDCl3)δ-109.1(dt,J=263.6Hz,14.7Hz,1F),-113.1(dt,J=263.6Hz,15.0Hz,1F).C-8为新化合物。
实施例27
Figure BDA0002258070360000122
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,47.2mg(0.30mmol,1当量)A-1,氩气置换三次后加入2mL丙酮(Acetone),注射77μL(0.45mmol)化合物B-2,在蓝光照射下搅拌16小时后,得化合物C-9,产率为73%。1H NMR(400MHz,CDCl3)δ5.01(br,1H),4.40-4.34(m,1H),3.63-3.40(m,2H),2.95-2.68(m,2H),1.45(s,9H).19F NMR(376MHz,CDCl3)δ-81.1(t,J=6.2Hz,3F),-112.7–-124.5(m,2F),-124.6(m,2F),-125.9(t,J=7.7Hz,2F).
实施例28
Figure BDA0002258070360000131
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射47μL(0.30mmol,1当量)化合物A-2,77μL(0.45mmol)化合物B-2,在蓝光照射下搅拌16小时后,得化合物C-10产率为76%。1H NMR(400MHz,CDCl3)δ4.37-4.30(m,1H),3.00-2.66(m,2H),1.89-1.70(m,2H),1.60-1.24(m,8H),0.90(t,J=6.8Hz,3H).19F NMR(376MHz,CDCl3)δ-88.4(m,3F),-118.8–-122.8(m,2F),-131.9(m,2F),-133.2(m,2F).
实施例29
Figure BDA0002258070360000132
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射41μL(0.30mmol,1当量)化合物A-5,103μL(0.60mmol)化合物B-2,在蓝光照射下搅拌16小时后,得化合物C-11,产率为79%。1H NMR(400MHz,CDCl3)δ4.35(td,J=6.8Hz,3.2Hz,1H),2.91-2.76(m,2H),1.85-1.76(m,2H),1.75-1.62(m,3H),1.44-1.06(m,5H),0.88-0.78(m,1H).19F NMR(376MHz,CDCl3)δ-81.1(m,3F),-112.3–-115.5(m,2F),-124.6(m,2F),-126.0(m,2F).
实施例30
Figure BDA0002258070360000133
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射40μL(0.30mmol,1当量)化合物A-6,77μL(0.45mmol)化合物B-2,在蓝光照射下搅拌16小时后,得化合物C-12,产率为84%。1H NMR(400MHz,CDCl3)δ7.39-7.29(m,3H),7.21(d,J=7.6Hz,2H),4.52-4.43(m,1H),3.31(dd,J=14.4Hz,5.6Hz,1H),3.21(dd,J=14.4Hz,8.8Hz,1H),3.02-2.78(m,2H).19F NMR(376MHz,CDCl3)δ-81.1(m,3F),-111.8–-114.6(m,2F),-124.6(m,2F),-126.0(m,2F).
实施例31
Figure BDA0002258070360000141
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,47.2mg(0.30mmol,1当量)A-1,氩气置换三次后加入2mL丙酮(Acetone),130μL(0.60mmol)化合物B-3,在蓝光照射下搅拌16小时后,得化合物C-13,产率为70%。1H NMR(400MHz,CDCl3)δ4.98(br,1H),4.41-4.34(m,1H),3.64-3.41(m,2H),2.94-2.70(m,2H),1.45(s,9H).19F NMR(376MHz,CDCl3)δ-80.8(m,3F),-112.3–-114.5(m,2F),-121.8(m,2F),-122.9(m,2F).-123.7(m,2F),-126.2(m,2F).C-13为新化合物。
实施例32
Figure BDA0002258070360000142
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射46μL(0.30mmol,1当量)化合物A-7,97μL(0.45mmol)化合物B-3,在蓝光照射下搅拌16小时后,得化合物C-14,产率为68%。1H NMR(400MHz,CDCl3)δ7.12(d,J=8.6Hz,2H),6.88(d,J=8.6Hz,2H),4.47-4.38(m,1H),3.81(s,3H),3.22(dd,J=14.8Hz,6.0Hz,1H),3.15(dd,J=14.8Hz,8.8Hz,1H),2.96-2.76(m,2H).19F NMR(376MHz,CDCl3)δ-80.8–-81.0(m,3F),-111.8–-114.1(m,2F),-121.8(m,2F),-122.9(m,2F),-123.7(m,2F),-126.2(m,2F).
实施例33
Figure BDA0002258070360000143
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射41μL(0.30mmol,1当量)化合物A-5,97μL(0.45mmol)化合物B-3,在蓝光照射下搅拌16小时后,得化合物C-15,产率为79%。1H NMR(400MHz,CDCl3)δ4.35(td,J=6.4Hz,2.8Hz,1H),2.93-2.75(m,2H),1.86-1.75(m,2H),1.75-1.61(m,3H),1.44-1.04(m,5H),0.88-0.77(m,1H).19F NMR(376MHz,CDCl3)δ-81.0(m,3F),-112.4–-115.2(m,2F),-121.9(m,2F),-123.0(m,2F),-123.7(m,2F),-126.3(m,2F).C-15为新化合物。
实施例34
Figure BDA0002258070360000151
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射47μL(0.30mmol,1当量)化合物A-2,97μL(0.45mmol)化合物B-3,在蓝光照射下搅拌16小时后,得化合物C-16,产率为72%。1H NMR(400MHz,CDCl3)δ4.37-4.30(m,1H),2.99-2.70(m,2H),1.88-1.72(m,2H),1.60-1.49(m,1H),1.47-1.25(m,7H),0.90(t,J=6.6Hz,3H).19F NMR(376MHz,CDCl3)δ-80.8(m,3F),-111.6–-114.9(m,2F),-121.8(m,2F),-122.9(m,2F),-123.7(m,2F),-126.2(m,2F).
实施例35
Figure BDA0002258070360000152
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射44μL(0.30mmol,1当量)化合物D-1,注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物E-1,产率为87%。1H NMR(400MHz,CDCl3)δ6.40(t,J=13.2Hz,1H),4.33(q,J=7.2Hz,2H),2.59(t,J=7.2Hz,2H),1.60-1.48(m,2H),1.35(t,J=7.2Hz,3H),1.40-1.25(m,6H),0.89(t,J=6.4Hz,3H).19F NMR(376MHz,CDCl3)δ-105.0(d,J=6.8Hz,2F,E).
实施例36
Figure BDA0002258070360000153
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射32μL(0.30mmol,1当量)化合物D-2,注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物E-2,产率为80%。1H NMR(400MHz,CDCl3)δ6.45(t,J=13.2Hz,1H),4.34(q,J=7.2Hz,2H),3.55(t,J=6.6Hz,2H),2.79(t,J=7.4Hz,2H),2.07-1.99(m,2H),1.35(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-97.9(d,J=13.2Hz,2F,E).E-2为新化合物。
实施例37
Figure BDA0002258070360000161
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射33μL(0.30mmol,1当量)化合物D-3,注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物E-3,产率为84%。1H NMR(400MHz,CDCl3)δ7.33-7.28(m,5H),6.72(t,J=11.0Hz,1H),3.97(q,J=7.2Hz,2H),1.20(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-93.9(d,J=10.9Hz,2F,E),-98.1(d,J=11.7Hz,2F,Z).
实施例38
Figure BDA0002258070360000162
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,38.1mg(0.30mmol,1当量)化合物D-4,氩气置换三次后加入2mL丙酮(Acetone),注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物E-4,产率为62%。1H NMR(400MHz,CDCl3)δ7.62(d,J=8.2Hz,2H),7.39(d,J=8.2Hz,2H),6.75(t,J=11.8Hz,1H),4.16(q,J=7.2Hz,2H),1.27(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-96.0(d,J=11.7Hz,2F,E).
实施例39
Figure BDA0002258070360000171
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射34μL(0.30mmol,1当量)化合物D-5,注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物E-5,产率为85%。1H NMR(400MHz,CDCl3)δ7.34-7.27(m,2H),7.01(t,J=8.6Hz,2H),6.71(t,J=11.2Hz,1H),4.06(q,J=7.2Hz,2H),1.23(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-94.4(d,J=7.5Hz,2F,E),-96.1(d,J=7.9Hz,2F,Z),-110.7(m,1F).
实施例40
Figure BDA0002258070360000172
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射36μL(0.30mmol,1当量)化合物D-6,注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物E-6,产率为81%。1H NMR(400MHz,CDCl3)δ7.38-7.34(m,1H),7.30-7.19(m,3H),6.79(t,J=11.4Hz,1H),4.19-4.10(m,2H),1.28(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-98.0(m,2F,E),-99.4(m,2F,Z).
实施例41
Figure BDA0002258070360000173
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射39μL(0.30mmol,1当量)化合物D-7,注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物E-7,产率为86%。1H NMR(400MHz,CDCl3)δ7.25(d,J=8.6Hz,2H),6.81(d,J=8.6Hz,2H),6.66(t,J=10.8Hz,1H),3.97(q,J=7.2Hz,2H),3.79(s,3H),1.18(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-89.4(d,J=2.3Hz,2F,Z),-93.3(m,2F,E).
实施例42
Figure BDA0002258070360000181
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射49μL(0.30mmol,1当量)化合物D-8,注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物E-8,产率为81%。1H NMR(400MHz,CDCl3)δ7.59(d,J=8.0Hz,2H),7.41(d,J=8.0Hz,2H),6.76(t,J=11.4Hz,1H),4.09(q,J=7.2Hz,2H),1.24(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-63.0(s,3F),-95.3(d,J=11.7Hz,2F,E).
实施例43
Figure BDA0002258070360000182
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,36mg(0.30mmol,1当量)化合物D-9,氩气置换三次后加入2mL丙酮(Acetone),注射66μL(0.45mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物E-9,产率为45%。1H NMR(400MHz,CDCl3)δ10.0(s,1H),7.84(d,J=8.0Hz,2H),7.45(d,J=8.0Hz,2H),6.75(t,J=11.6Hz,1H),4.10(q,J=7.2Hz,2H),1.24(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-95.8(d,J=11.3Hz,2F,E).E-9为新化合物。
实施例44
Figure BDA0002258070360000183
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射35μL(0.30mmol,1当量)化合物D-10,注射88μL(0.60mmol)化合物B-1,在蓝光照射下搅拌16小时后,得化合物E-9,产率为70%。1H NMR(400MHz,CDCl3)δ8.19-8.14(m,2H),7.62(d,J=7.6Hz,1H),7.53(t,J=7.8Hz,1H),6.79(t,J=12.0Hz,1H),4.20(q,J=7.2Hz,2H),1.30(t,J=7.2Hz,3H).19F NMR(376MHz,CDCl3)δ-96.4(d,J=11.7Hz,2F,E).E-10为新化合物。
实施例45
Figure BDA0002258070360000191
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射39μL(0.30mmol,1当量)化合物D-7,注射77μL(0.45mmol)化合物B-2,在蓝光照射下搅拌16小时后,得化合物E-11,产率为77%。1H NMR(400MHz,CDCl3)δ7.27(d,J=8.8Hz,2H),6.85(d,J=8.4Hz,2H),6.56(t,J=13.6Hz,1H),3.82(s,3H).19F NMR(376MHz,CDCl3)δ-81.11(m,3F),-105.1(m,2F),-123.9(m,2F),-125.9(m,2F).E-11为新化合物。
实施例46
Figure BDA0002258070360000192
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射32μL(0.30mmol,1当量)化合物D-2,注射97μL(0.45mmol)化合物B-3在蓝光照射下搅拌16小时后,得化合物E-12,产率为60%。1H NMR(400MHz,CDCl3)δ6.39(t,J=14.4Hz,1H),3.56(t,J=6.4Hz,2H),2.83(t,J=7.4Hz,2H),2.12-2.02(m,2H).19F NMR(376MHz,CDCl3)δ-81.0(t,J=9.8Hz,3F),-105.7(q,J=13.0Hz,2F),-121.8(m,2F),-123.0(m,2F),-123.3(m,2F),-126.3(m,2F).E-12为新化合物。
实施例47
Figure BDA0002258070360000193
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,38.1mg(0.30mmol,1当量)化合物D-4,氩气置换三次后加入2mL丙酮(Acetone),注射97μL(0.45mmol)化合物B-3,在蓝光照射下搅拌16小时后,得化合物E-13,产率为41%。1H NMR(400MHz,CDCl3)δ7.67-7.63(m,2H),7.38(d,J=8.0Hz,2H),6.66(t,J=13.4Hz,1H).19F NMR(376MHz,CDCl3)δ-80.9(m,3F),-105.5(m,2F),-102.8(m,2F),-122.9(m,4F),-126.2(m,2F).E-13为新化合物。
实施例48
Figure BDA0002258070360000201
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射39μL(0.30mmol,1当量)化合物D-7,注射97μL(0.45mmol)化合物B-3,在蓝光照射下搅拌16小时后,得化合物E-14,产率为75%。1H NMR(400MHz,CDCl3)δ7.27(d,J=8.6,2H),6.85(d,J=8.8Hz),6.56(t,J=13.4Hz,1H),3.82(s,3H).19F NMR(376MHz,CDCl3)δ-80.9(m,3F),-104.9(m,2F),-121.8(m,2F),-123.0(m,4F),-126.3(m,2F).E-14为新化合物。
实施例49
Figure BDA0002258070360000202
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射39μL(0.30mmol,1当量)化合物D-11,注射97μL(0.45mmol)化合物B-3,在蓝光照射下搅拌16小时后,得化合物E-15,产率为74%。1H NMR(400MHz,CDCl3)δ7.34-7.28(m,1H),7.13(d,J=7.6Hz,1H),6.96-6.90(m,1H),6.87(d,J=8.4Hz,1H),6.60(t,J=13.2Hz,1H),3.88(s,3H).19F NMR(376MHz,CDCl3)δ-80.9(t,J=9.8Hz,3F),-107.9(q,J=13.2Hz,2F),-121.9(m,2F),-123.0(m,2F),-123.3(m,2F),-126.3(m,2F).E-15为新化合物。
实施例50
Figure BDA0002258070360000211
向25mL的反应管中,加入82.9mg(0.60mmol)K2CO3,氩气置换三次后加入2mL丙酮(Acetone),注射34μL(0.30mmol,1当量)化合物D-5,注射97μL(0.45mmol)化合物B-3,在蓝光照射下搅拌16小时后,得化合物E-16,产率为47%。1H NMR(400MHz,CDCl3)δ7.32-7.25(m,2H),7.03(t,J=8.6Hz,2H),6.60(t,J=13.4Hz,1H).19F NMR(376MHz,CDCl3)δ-80.9(m,3F),-105.2(m,2F),-111.0(m,1F),-121.8(m,2F),-122.9(m,4F),-126.3(m,2F).E-16为新化合物。
实施例1~实施例50合成的化合物C-1、化合物C-3、化合物C-4、化合物C-5、化合物C-7、化合物C-8、化合物C-13、化合物C-15、和化合物E-2、化合物E-9、化合物E-10、化合物E-11、化合物E-12、化合物E-13、化合物E-14、化合物E-15、化合物E-16都是新化合物,在医药,农药,材料学中有着潜在的作用。
在本发明提及的所有文献都在本申请中引用作为参考,就如同每一篇文献被单独引用作为参考那样。此外应理解,在阅读了本发明的上述讲授内容之后,本领域技术人员可以对本发明作各种改动或修改,这些等价形式同样落于本申请所附权利要求书所限定的范围。
应理解,在本发明范围内中,本发明的上述各技术特征和在下文(如实施例)中具体描述的各技术特征之间都可以互相组合,从而构成新的或优选的技术方案。限于篇幅,在此不再一一赘述。
以上所述的仅是本发明的实施例,方案中公知的具体结构及特性等常识在此未作过多描述,对于本领域的技术人员来说,在不脱离本发明结构的前提下,还可以作出若干变形和改进,这些也应该视为本发明的保护范围,这些都不会影响本发明实施的效果和专利的实用性。本申请要求的保护范围应当以其权利要求的内容为准,说明书中的具体实施方式等记载可以用于解释权利要求的内容。

Claims (7)

1.一种在丙酮诱导下对烯烃或者炔烃进行氟烷基化的方法,其特征在于,包括步骤:于惰性气体中,光照条件下,以丙酮为溶剂,在碱存在下,将式A化合物/式D化合物与式B化合物进行反应,从而形成式C化合物/式E化合物;
Figure FDA0003202736940000011
上述各式中,R1为C1-15烷基、苯基取代的C1-15烷基、羟基取代的C1-15烷基、酯基取代的C1-15烷基或酰胺取代的C1-15烷基;
R2为C1-15烷基、苯基取代的C1-15烷基、卤代的C1-15烷基、C1-5烷基取代的苯基、三氟甲基取代的苯基、卤素取代的苯基、C1-5烷氧基取代的苯基、醛基取代的苯基或硝基取代的苯基;
Rf为CF2COOEt或CnF2n+1,其中n=2-8。
2.根据权利要求1所述的一种在丙酮诱导下对烯烃或者炔烃进行氟烷基化的方法,其特征在于,所述式A化合物/式D化合物、碱、式B化合物的摩尔比为1:1~2:1.5~3。
3.根据权利要求1或2所述的一种在丙酮诱导下对烯烃或者炔烃进行氟烷基化的方法,其特征在于,反应在0~50℃下进行。
4.根据权利要求1或2所述的一种在丙酮诱导下对烯烃或者炔烃进行氟烷基化的方法,其特征在于,所述的反应在可见光照射下进行。
5.根据权利要求4所述的一种在丙酮诱导下对烯烃或者炔烃进行氟烷基化的方法,其特征在于,所述可见光为蓝光或者紫光。
6.根据权利要求1或2所述的一种在丙酮诱导下对烯烃或者炔烃进行氟烷基化的方法,其特征在于,所述的碱选自碳酸盐、羧酸盐或者磷酸盐中的任一种。
7.根据权利要求6所述的一种在丙酮诱导下对烯烃或者炔烃进行氟烷基化的方法,其特征在于,所述的碱为碳酸钾。
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