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Kar SS, Nanda NP, Ravichandiran V, Swain SP. Silane promoted glycosylation and its applications for synthesis of sugar compounds and active pharmaceutical ingredients (APIs). NEW J CHEM 2022. [DOI: 10.1039/d2nj04192h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Silane promoted glycosylation and its applications for preparation of active pharmaceutical ingredients.
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Affiliation(s)
- Sidhartha Sankar Kar
- Department of Pharmaceutical Chemistry, Institute of Pharmacy & Technology, Salipur, Cuttack, 754202, Odisha, India
| | - Nrusingha Prasad Nanda
- Department of Pharmaceutical Chemistry, Institute of Pharmacy & Technology, Salipur, Cuttack, 754202, Odisha, India
| | - V. Ravichandiran
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Kolkata, 168, Maniktala Main Road, Kolkata, 700054, India
| | - Sharada Prasanna Swain
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Kolkata, 168, Maniktala Main Road, Kolkata, 700054, India
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Affiliation(s)
- Jiarong Shi
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Lianggui Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Yang Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
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Hwu JR, Panja A, Gupta NK, Huang W, Hu Y, Lin C, Hwang K, Chan W, Tsay S. Asymmetric Synthesis of 3‐Pyrrolines through an Aryne‐Induced Domino Process. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000711] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jih Ru Hwu
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
| | - Avijit Panja
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
| | - Nitesh K. Gupta
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
| | - Wen‐Chieh Huang
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
| | - Yu‐Chen Hu
- Department of Chemical Engineering National Tsing Hua University Hsinchu 30013 Taiwan
| | - Chun‐Cheng Lin
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
| | - Kuo‐Chu Hwang
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
| | - Wei‐Jen Chan
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
| | - Shwu‐Chen Tsay
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
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Hwu JR, Roy A, Panja A, Huang WC, Hu YC, Tan KT, Lin CC, Hwang KC, Hsu MH, Tsay SC. Domino Reaction for the Synthesis of Polysubstituted Pyrroles and Lamellarin R. J Org Chem 2020; 85:9835-9843. [PMID: 32615761 DOI: 10.1021/acs.joc.0c01134] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A three-component annulation reaction was developed for the synthesis of pyrroles, a class of compounds with various properties valuable to biomedical and polymer industries. Treatment of α-silylaryl triflates, Schiff bases, and alkynes generated polysubstituted pyrroles in good yields (61-86%) with regioselectivity. This domino reaction involved completion of five sequential steps in a single flask, which comprised aryne formation through 1,2-elimination, their alkylation by Schiff bases through 1,2-addition, 1,4-intramolecular proton transfer, Hüisgen 1,3-dipolar cycloaddition, and dehydrogenative aromatization. It was then successfully applied as the key step in the synthesis of the natural product lamellarin R. This new reaction represents an efficient, sustainable process for the production of chemical materials.
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Affiliation(s)
- Jih Ru Hwu
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Animesh Roy
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Avijit Panja
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Wen-Chieh Huang
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Yu-Chen Hu
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan.,Department of Chemical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Kui-Thong Tan
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Chun-Cheng Lin
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Kuo-Chu Hwang
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Ming-Hua Hsu
- Department of Chemistry, National Changhua University of Education, Changhua County, 500, Taiwan
| | - Shwu-Chen Tsay
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan
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Sabbasani VR, Huang G, Xia Y, Lee D. Facile Alder-Ene Reactions of Silylallenes Involving an Allenic C(sp(2) )-H Bond. Chemistry 2015; 21:17210-4. [PMID: 26482213 DOI: 10.1002/chem.201503243] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Indexed: 11/07/2022]
Abstract
Facile and selective Alder-ene reactions of silylallenes involving the activation of an allenic C(sp(2) )H over an allylic C(sp(3) )H bond is described. In this ene reaction, the presence of a silyl substituent was found to be critical for the observed reactivity and selectivity since the corresponding alkyl-substituted allenes show different reaction profiles. Computational studies show that the origin of this unusual reactivity is the lower bond dissociation energy of the α-C(sp(2) )H bond in silylallenes compared to the corresponding nonsilylated allenes.
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Affiliation(s)
- Venkata R Sabbasani
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL, 60607 (USA)
| | - Genping Huang
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072 (P.R. China)
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province 325035 (P.R. China)
| | - Daesung Lee
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL, 60607 (USA).
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Sabbasani VR, Lee D. Oxidative Dimerization of Silylallenes via Activation of the Allenic C(sp2)–H Bond Catalyzed by Copper(I) Chloride and N-Hydroxyphthalimide. Org Lett 2015; 17:4878-81. [PMID: 26402150 DOI: 10.1021/acs.orglett.5b02433] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Venkata R. Sabbasani
- Department
of Chemistry, University of Illinois at Chicago, 845 West Taylor
Street, Chicago, Illinois 60607, United States
| | - Daesung Lee
- Department
of Chemistry, University of Illinois at Chicago, 845 West Taylor
Street, Chicago, Illinois 60607, United States
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Sha F, Tao Y, Tang CY, Zhang F, Wu XY. Construction of Benzo[c]carbazoles and Their Antitumor Derivatives through the Diels–Alder Reaction of 2-Alkenylindoles and Arynes. J Org Chem 2015. [DOI: 10.1021/acs.joc.5b01223] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Feng Sha
- Key Lab for Advanced Materials
and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, People’s Republic of China
| | - Yuan Tao
- Key Lab for Advanced Materials
and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, People’s Republic of China
| | - Chen-Yu Tang
- Key Lab for Advanced Materials
and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, People’s Republic of China
| | - Fei Zhang
- Key Lab for Advanced Materials
and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, People’s Republic of China
| | - Xin-Yan Wu
- Key Lab for Advanced Materials
and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, People’s Republic of China
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Su S, Wang N, Li C, Song B, Jia X, Li J. Tandem Diels-Alder/Coupling Reaction Involving Two Arynes: Highly Stereoselective Synthesis of Dihydronaphtho-Fused Oxindole. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201300247] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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