Citation: Hui Min Sun, Zhao Peng Liu, Long Qian Tang. Synthesis of novel chiral fluorinating agents, (+)-and (-)-N-fluoro-3-methyl-3-(4-methylphenyl)-2H-benzo [e] [1,2] thiazine-1,1,4-triones[J]. Chinese Chemical Letters, ;2008, 19(8): 907-910. doi: 10.1016/j.cclet.2008.05.036 shu

Synthesis of novel chiral fluorinating agents, (+)-and (-)-N-fluoro-3-methyl-3-(4-methylphenyl)-2H-benzo [e] [1,2] thiazine-1,1,4-triones

a National Institute for the Control of Pharmaceutical and Biological Products, Beijing 100050, China;
b Department of Organic Chemistry, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China

Received Date: 26 February 2008

Treatment of N-t-butylbenzenesulfonamide with an excess of BuLi, followed by the reaction with methyl 2-(4-methylphenyl)propanoate, gave the corresponding 2-carboxybenzenesulfonamide, which underwent a sequence of consecutive N-deprotective cyclization process mediated by TMSCl-NaI-MeCN reagent to afford the N-sulfonylimine.Following the bromination and ring expansion, 3-methyl-3-(4-methylphenyl)-2H-benzo[e][1,2]thiazine-1,1,4-trione was obtained.Optical resolution of the racemic benzosultam using (-)-menthoxyacetyl chloride, furnished the optically pure (+)-and (-)-3-methyl-3-(4-methylphenyl)-2H-benzo[e][1,2]thiazine-1,1,4-triones, which were fluorinated with FClO₃ to produce the corresponding chiral N-F agents.
- Benzosultams,
- Cyclization,
- TMSCl/NaI/MeCN,
- Enantioselective electrophilic fluorinating agent,
- Chirality
1. [1]
  Chunhua Ma , Mengjiao Liu , Siyu Ouyang , Zhenwei Cui , Jingjing Bi , Yuqin Jiang , Zhiguo Zhang . Metal-free construction of diverse 1,2,4-triazolo[1,5-a]pyridines on water. Chinese Chemical Letters, 2025, 36(1): 109755-. doi: 10.1016/j.cclet.2024.109755
2. [2]
  Zhao-Xia Lian , Xue-Zhi Wang , Chuang-Wei Zhou , Jiayu Li , Ming-De Li , Xiao-Ping Zhou , Dan Li . Producing circularly polarized luminescence by radiative energy transfer from achiral metal-organic cage to chiral organic molecules. Chinese Chemical Letters, 2024, 35(8): 109063-. doi: 10.1016/j.cclet.2023.109063
3. [3]
  Wenying Cui , Zhetong Jin , Wentao Fu , Chengshuo Shen . Flag-hinge-like highly luminescent chiral nanographenes with twist geometry. Chinese Chemical Letters, 2024, 35(11): 109667-. doi: 10.1016/j.cclet.2024.109667
4. [4]
  Genlin Sun , Yachun Luo , Zhihong Yan , Hongdeng Qiu , Weiyang Tang . Chiral metal-organic frameworks-based materials for chromatographic enantioseparation. Chinese Chemical Letters, 2024, 35(12): 109787-. doi: 10.1016/j.cclet.2024.109787
5. [5]
  Teng-Yu Huang , Junliang Sun , De-Xian Wang , Qi-Qiang Wang . Recent progress in chiral zeolites: Structure, synthesis, characterization and applications. Chinese Chemical Letters, 2024, 35(12): 109758-. doi: 10.1016/j.cclet.2024.109758
6. [6]
  Yi Zhou , Wei Zhang , Rong Fu , Jiaxin Dong , Yuxuan Liu , Zihang Song , Han Han , Kang Cai . Self-assembly of two pairs of homochiral M₂L₄ coordination capsules with varied confined space using Tröger's base ligands. Chinese Chemical Letters, 2025, 36(2): 109865-. doi: 10.1016/j.cclet.2024.109865
7. [7]
  Yi-Fan Wang , Hao-Yun Yu , Hao Xu , Ya-Jie Wang , Xiaodi Yang , Yu-Hui Wang , Ping Tian , Guo-Qiang Lin . Rhodium(Ⅲ)-catalyzed diastereo- and enantioselective hydrosilylation/cyclization reaction of cyclohexadienone-tethered α, β-unsaturated aldehydes. Chinese Chemical Letters, 2024, 35(9): 109520-. doi: 10.1016/j.cclet.2024.109520
8. [8]
  Xinghui Yao , Zhouyu Wang , Da-Gang Yu . Sustainable electrosynthesis: Enantioselective electrochemical Rh(III)/chiral carboxylic acid-catalyzed oxidative CH cyclization coupled with hydrogen evolution reaction. Chinese Chemical Letters, 2024, 35(9): 109916-. doi: 10.1016/j.cclet.2024.109916
9. [9]
  Yiming Yang , Lichao Sun , Qingfeng Zhang . Plasmonic nanocrystals with intrinsic chirality: Biomolecule-directed synthesis and applications. Chinese Journal of Structural Chemistry, 2025, 44(1): 100467-100467. doi: 10.1016/j.cjsc.2024.100467
10. [10]
  Yaping Zhang , Wei Zhou , Mingchun Gao , Tianqi Liu , Bingxin Liu , Chang-Hua Ding , Bin Xu . Oxidative cyclization of allyl compounds and isocyanide: A facile entry to polysubstituted 2-cyanopyrroles. Chinese Chemical Letters, 2024, 35(4): 108836-. doi: 10.1016/j.cclet.2023.108836
11. [11]
  Ke Zhang , Sheng Zuo , Pengyuan You , Tong Ru , Fen-Er Chen . Palladium-catalyzed stereoselective decarboxylative [4 + 2] cyclization of 2-methylidenetrimethylene carbonates with pyrrolidone-derived enones: Straightforward access to chiral tetrahydropyran-fused spiro-pyrrolidine-2,3-diones. Chinese Chemical Letters, 2024, 35(6): 109157-. doi: 10.1016/j.cclet.2023.109157
12. [12]
  Tao LIU , Yuting TIAN , Ke GAO , Xuwei HAN , Ru'nan MIN , Wenjing ZHAO , Xueyi SUN , Caixia YIN . A photothermal agent with high photothermal conversion efficiency and high stability for tumor therapy. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1622-1632. doi: 10.11862/CJIC.20240107
13. [13]
  Xingfen Huang , Jiefeng Zhu , Chuan He . Catalytic enantioselective N-silylation of sulfoximine. Chinese Chemical Letters, 2024, 35(4): 108783-. doi: 10.1016/j.cclet.2023.108783
14. [14]
  Xin Li , Wanting Fu , Ruiqing Guan , Yue Yuan , Qinmei Zhong , Gang Yao , Sheng-Tao Yang , Liandong Jing , Song Bai . Nucleophiles promotes the decomposition of electrophilic functional groups of tetracycline in ZVI/H₂O₂ system: Efficiency and mechanism. Chinese Chemical Letters, 2024, 35(10): 109625-. doi: 10.1016/j.cclet.2024.109625
15. [15]
  Ze-Yuan Ma , Mei Xiao , Cheng-Kun Li , Adedamola Shoberu , Jian-Ping Zou . S-(1,3-Dioxoisoindolin-2-yl)O,O-diethyl phosphorothioate (SDDP): A practical electrophilic reagent for the phosphorothiolation of electron-rich compounds. Chinese Chemical Letters, 2024, 35(5): 109076-. doi: 10.1016/j.cclet.2023.109076
16. [16]
  Yujia Shi , Yan Qiao , Pengfei Xie , Miaomiao Tian , Xingwei Li , Junbiao Chang , Bingxian Liu . Rhodium-catalyzed enantioselective in situ C(sp³)−H heteroarylation by a desymmetrization approach. Chinese Chemical Letters, 2024, 35(10): 109544-. doi: 10.1016/j.cclet.2024.109544
17. [17]
  Shuai Zhu , Mingjie Chen , Haichao Shen , Hanming Ding , Wenbo Li , Junliang Zhang . Palladium/Xu-Phos-catalyzed enantioselective arylalkoxylation reaction of γ-hydroxyalkenes at room temperature. Chinese Chemical Letters, 2024, 35(11): 109879-. doi: 10.1016/j.cclet.2024.109879
18. [18]
  Yuhan Liu , Jingyang Zhang , Gongming Yang , Jian Wang . Highly enantioselective carbene-catalyzed δ-lactonization via radical relay cross-coupling. Chinese Chemical Letters, 2025, 36(1): 109790-. doi: 10.1016/j.cclet.2024.109790
19. [19]
  Yuemin Chen , Yunqi Wu , Guoao Wang , Feihu Cui , Haitao Tang , Yingming Pan . Electricity-driven enantioselective cross-dehydrogenative coupling of two C(sp³)-H bonds enabled by organocatalysis. Chinese Chemical Letters, 2024, 35(9): 109445-. doi: 10.1016/j.cclet.2023.109445
20. [20]
  Junying LI , Xinyan CHEN , Xihui DIAO , Muhammad Yaseen , Chao CHEN , Hao WANG , Chuansong QI , Wei LI . Chiral fluorescent sensor Tb³⁺@Cd-CP based on camphoric acid for the enantioselective recognition of R- and S-propylene glycol. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2497-2504. doi: 10.11862/CJIC.20240084

Get Citation

PDF

XML

Metrics

PDF Downloads(1)
Abstract views(514)
HTML views(12)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return