An ammonium ylide mediated access towardstrans-beta,gamma-disubstituted,all-trans-alpha,beta,gamma-trisubstituted, and alpha,alpha,beta,gamma-tetrasubstituted gamma-butyrolactones bearing a broad variety of functionalities was developed. Starting from widely accessible benzylidene Meldrum's acid derivatives and alpha-bromo carbonyl compounds,gamma-butyrolactones were obtained in yields between 32-99% with up to excellent diastereoselectivities (>95:5)viaa DABCO-mediated [2+1] annulation. Utilization of enantiomerically pure cinchona alkaloid derivatives enables the first asymmetric ammonium ylide mediated method to provide (3R, 4R)-beta,gamma-disubstituted and (2R, 3R, 4R)-alpha,beta,gamma-trisubstituted gamma-butyrolactones in moderate to good yields with up to very good enantiomeric ratios (97:3). The scalability of the transformation was proven while determining the absolute configuration.
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Zhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Natl Ctr Res & Popularizat Calcium Magnesium Phosp, Zhengzhou 450001, Peoples R China
Res Ctr Engn & Technol Synerget Control Environm P, Zhengzhou 450001, Peoples R ChinaZhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Wang, Baoming
Lv, Zhonghao
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Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R ChinaZhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Lv, Zhonghao
Yu, Mengmeng
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Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R ChinaZhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Yu, Mengmeng
Liu, Xu
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Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R ChinaZhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Liu, Xu
Li, Cuili
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Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R ChinaZhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Li, Cuili
Hua, Quanxian
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Natl Ctr Res & Popularizat Calcium Magnesium Phosp, Zhengzhou 450001, Peoples R China
Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R ChinaZhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Hua, Quanxian
Liu, Yong
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Natl Ctr Res & Popularizat Calcium Magnesium Phosp, Zhengzhou 450001, Peoples R China
Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R ChinaZhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Liu, Yong
Liu, Pengfei
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Zhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Natl Ctr Res & Popularizat Calcium Magnesium Phosp, Zhengzhou 450001, Peoples R China
Res Ctr Engn & Technol Synerget Control Environm P, Zhengzhou 450001, Peoples R ChinaZhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Liu, Pengfei
Shen, Bo
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Zhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Natl Ctr Res & Popularizat Calcium Magnesium Phosp, Zhengzhou 450001, Peoples R China
Res Ctr Engn & Technol Synerget Control Environm P, Zhengzhou 450001, Peoples R ChinaZhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Shen, Bo
Zhao, Nan
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Zhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Natl Ctr Res & Popularizat Calcium Magnesium Phosp, Zhengzhou 450001, Peoples R China
Res Ctr Engn & Technol Synerget Control Environm P, Zhengzhou 450001, Peoples R ChinaZhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Zhao, Nan
Ding, Junxiang
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Zhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Natl Ctr Res & Popularizat Calcium Magnesium Phosp, Zhengzhou 450001, Peoples R China
Res Ctr Engn & Technol Synerget Control Environm P, Zhengzhou 450001, Peoples R ChinaZhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Ding, Junxiang
Tang, Jianwei
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Zhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
Natl Ctr Res & Popularizat Calcium Magnesium Phosp, Zhengzhou 450001, Peoples R China
Res Ctr Engn & Technol Synerget Control Environm P, Zhengzhou 450001, Peoples R ChinaZhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Peoples R China
机构:
Kavayitri Bahinabai Chaudhari North Maharashtra Un, Sch Chem Sci, Jalgaon, IndiaKavayitri Bahinabai Chaudhari North Maharashtra Un, Sch Chem Sci, Jalgaon, India
Raheja, Barkha K.
Dalal, Dipak S.
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Kavayitri Bahinabai Chaudhari North Maharashtra Un, Sch Chem Sci, Jalgaon, India
Kavayitri Bahinabai Chaudhari North Maharashtra Un, Sch Chem Sci, Jalgaon 425001, Maharashtra, IndiaKavayitri Bahinabai Chaudhari North Maharashtra Un, Sch Chem Sci, Jalgaon, India
机构:
CSIR Cent Drug Res Inst, Med & Proc Chem Div, Lucknow 226031, Uttar Pradesh, IndiaCSIR Cent Drug Res Inst, Med & Proc Chem Div, Lucknow 226031, Uttar Pradesh, India
Kumar, Amrendra
Prajapati, Rmanand
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CSIR Cent Drug Res Inst, Med & Proc Chem Div, Lucknow 226031, Uttar Pradesh, IndiaCSIR Cent Drug Res Inst, Med & Proc Chem Div, Lucknow 226031, Uttar Pradesh, India
Prajapati, Rmanand
Kant, Ruchir
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CSIR Cent Drug Res Inst, Mol & Struct Biol Div, Lucknow 226031, Uttar Pradesh, IndiaCSIR Cent Drug Res Inst, Med & Proc Chem Div, Lucknow 226031, Uttar Pradesh, India
Kant, Ruchir
Narender, Tadigoppula
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CSIR Cent Drug Res Inst, Med & Proc Chem Div, Lucknow 226031, Uttar Pradesh, IndiaCSIR Cent Drug Res Inst, Med & Proc Chem Div, Lucknow 226031, Uttar Pradesh, India