The Experts below are selected from a list of 24213 Experts worldwide ranked by ideXlab platform
Aiqing Wang - One of the best experts on this subject based on the ideXlab platform.
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clean one pot synthesis of naphthopyran derivatives in aqueous media
ChemInform, 2006Co-Authors: Tongshou Jin, Jianshe Zhang, Libin Liu, Aiqing WangAbstract:Abstract A general and practical one‐pot synthesis of naphthopyran derivatives using hexadecyltrimethylammonium bromide (HTMAB) as catalyst (10 mol%) is described. This method provides several advantages such as neutral conditions, high yields and simple workup procedure. The catalyst is low cost, facile, active, environmentally friendly, and reusable. In addition, water is chosen as a Green Solvent.
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hexadecyldimethyl benzyl ammonium bromide an efficient catalyst for a clean one pot synthesis of tetrahydrobenzopyran derivatives in water
Arkivoc, 2006Co-Authors: Aiqing Wang, Tongshuang LiAbstract:A clean and efficient method for the synthesis of 2-amino-4-aryl-3-cyano-5-oxo- 4H-5,6,7,8- tetrahydrobenzopyran derivatives using hexadecyldimethylbenzyl ammonium bromide (HDMBAB) as the catalyst is described. This method provides several advantages, such as simple work-up procedure, environmentally benign, neutral conditions and high yields. In addition, water was chosen as a Green Solvent.
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ultrasound assisted synthesis of 1 8 dioxo octahydroxanthene derivatives catalyzed by p dodecylbenzenesulfonic acid in aqueous media
Ultrasonics Sonochemistry, 2006Co-Authors: Jianshe Zhang, Aiqing Wang, Tongshuang LiAbstract:Abstract An efficient and convenient approach to the synthesis of 3,3,6,6-tetramethyl-9-aryl-1,8-dioxo-octahydroxanthene derivatives using p-dodecylbenzenesulfonic acid (DBSA) as the catalyst (10 mol.%) under ultrasound irradiation is described. This method provides several advantages such as environment friendliness, high yields and simple work-up procedure. In addition, water was chosen as a Green Solvent.
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one pot clean synthesis of 1 8 dioxo decahydroacridines catalyzed by p dodecylbenezenesulfonic acid in aqueous media
Synthesis, 2004Co-Authors: Tongshou Jin, Jianshe Zhang, Tongtong Guo, Aiqing WangAbstract:Reaction of aromatic aldehyde, 5,5-dimethyl-1,3-cyclohexanedione and p-toluidine in water were successfully carried out in the presence of p-dodecylbenezenesulfonic acid (DBSA) as a BrΦnsted acid-surfactant-combined catalyst. This method provides several advantages such as environment friendliness, high yields and simple work-up procedure. In addition, water was chosen as a Green Solvent.
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clean synthesis of 1 8 dioxo octahydroxanthene derivatives catalyzed by p dodecylbenezenesulfonic acid in aqueous media
Synlett, 2004Co-Authors: Tongshou Jin, Jianshe Zhang, Jinchong Xiao, Aiqing WangAbstract:An efficient and convenient approach to the synthesis of 3,3,6,6-tetramethyl-9-aryl-1,8-dioxo-octahydroxanthene derivatives using p-dodecylbenezenesulfonic acid (DBSA) as the catalyst (10 mol%) is described. This method provides several advantages such as being environmentally friendly, processing high yields and simple work-up procedure. In addition, water was chosen as a Green Solvent.
Jianshe Zhang - One of the best experts on this subject based on the ideXlab platform.
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clean one pot synthesis of naphthopyran derivatives in aqueous media
ChemInform, 2006Co-Authors: Tongshou Jin, Jianshe Zhang, Libin Liu, Aiqing WangAbstract:Abstract A general and practical one‐pot synthesis of naphthopyran derivatives using hexadecyltrimethylammonium bromide (HTMAB) as catalyst (10 mol%) is described. This method provides several advantages such as neutral conditions, high yields and simple workup procedure. The catalyst is low cost, facile, active, environmentally friendly, and reusable. In addition, water is chosen as a Green Solvent.
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ultrasound assisted synthesis of 1 8 dioxo octahydroxanthene derivatives catalyzed by p dodecylbenzenesulfonic acid in aqueous media
Ultrasonics Sonochemistry, 2006Co-Authors: Jianshe Zhang, Aiqing Wang, Tongshuang LiAbstract:Abstract An efficient and convenient approach to the synthesis of 3,3,6,6-tetramethyl-9-aryl-1,8-dioxo-octahydroxanthene derivatives using p-dodecylbenzenesulfonic acid (DBSA) as the catalyst (10 mol.%) under ultrasound irradiation is described. This method provides several advantages such as environment friendliness, high yields and simple work-up procedure. In addition, water was chosen as a Green Solvent.
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one pot clean synthesis of 1 8 dioxo decahydroacridines catalyzed by p dodecylbenezenesulfonic acid in aqueous media
Synthesis, 2004Co-Authors: Tongshou Jin, Jianshe Zhang, Tongtong Guo, Aiqing WangAbstract:Reaction of aromatic aldehyde, 5,5-dimethyl-1,3-cyclohexanedione and p-toluidine in water were successfully carried out in the presence of p-dodecylbenezenesulfonic acid (DBSA) as a BrΦnsted acid-surfactant-combined catalyst. This method provides several advantages such as environment friendliness, high yields and simple work-up procedure. In addition, water was chosen as a Green Solvent.
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clean synthesis of 1 8 dioxo octahydroxanthene derivatives catalyzed by p dodecylbenezenesulfonic acid in aqueous media
Synlett, 2004Co-Authors: Tongshou Jin, Jianshe Zhang, Jinchong Xiao, Aiqing WangAbstract:An efficient and convenient approach to the synthesis of 3,3,6,6-tetramethyl-9-aryl-1,8-dioxo-octahydroxanthene derivatives using p-dodecylbenezenesulfonic acid (DBSA) as the catalyst (10 mol%) is described. This method provides several advantages such as being environmentally friendly, processing high yields and simple work-up procedure. In addition, water was chosen as a Green Solvent.
Tongshou Jin - One of the best experts on this subject based on the ideXlab platform.
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clean one pot synthesis of naphthopyran derivatives in aqueous media
ChemInform, 2006Co-Authors: Tongshou Jin, Jianshe Zhang, Libin Liu, Aiqing WangAbstract:Abstract A general and practical one‐pot synthesis of naphthopyran derivatives using hexadecyltrimethylammonium bromide (HTMAB) as catalyst (10 mol%) is described. This method provides several advantages such as neutral conditions, high yields and simple workup procedure. The catalyst is low cost, facile, active, environmentally friendly, and reusable. In addition, water is chosen as a Green Solvent.
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one pot clean synthesis of 1 8 dioxo decahydroacridines catalyzed by p dodecylbenezenesulfonic acid in aqueous media
Synthesis, 2004Co-Authors: Tongshou Jin, Jianshe Zhang, Tongtong Guo, Aiqing WangAbstract:Reaction of aromatic aldehyde, 5,5-dimethyl-1,3-cyclohexanedione and p-toluidine in water were successfully carried out in the presence of p-dodecylbenezenesulfonic acid (DBSA) as a BrΦnsted acid-surfactant-combined catalyst. This method provides several advantages such as environment friendliness, high yields and simple work-up procedure. In addition, water was chosen as a Green Solvent.
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clean synthesis of 1 8 dioxo octahydroxanthene derivatives catalyzed by p dodecylbenezenesulfonic acid in aqueous media
Synlett, 2004Co-Authors: Tongshou Jin, Jianshe Zhang, Jinchong Xiao, Aiqing WangAbstract:An efficient and convenient approach to the synthesis of 3,3,6,6-tetramethyl-9-aryl-1,8-dioxo-octahydroxanthene derivatives using p-dodecylbenezenesulfonic acid (DBSA) as the catalyst (10 mol%) is described. This method provides several advantages such as being environmentally friendly, processing high yields and simple work-up procedure. In addition, water was chosen as a Green Solvent.
Tongshuang Li - One of the best experts on this subject based on the ideXlab platform.
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hexadecyldimethyl benzyl ammonium bromide an efficient catalyst for a clean one pot synthesis of tetrahydrobenzopyran derivatives in water
Arkivoc, 2006Co-Authors: Aiqing Wang, Tongshuang LiAbstract:A clean and efficient method for the synthesis of 2-amino-4-aryl-3-cyano-5-oxo- 4H-5,6,7,8- tetrahydrobenzopyran derivatives using hexadecyldimethylbenzyl ammonium bromide (HDMBAB) as the catalyst is described. This method provides several advantages, such as simple work-up procedure, environmentally benign, neutral conditions and high yields. In addition, water was chosen as a Green Solvent.
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ultrasound assisted synthesis of 1 8 dioxo octahydroxanthene derivatives catalyzed by p dodecylbenzenesulfonic acid in aqueous media
Ultrasonics Sonochemistry, 2006Co-Authors: Jianshe Zhang, Aiqing Wang, Tongshuang LiAbstract:Abstract An efficient and convenient approach to the synthesis of 3,3,6,6-tetramethyl-9-aryl-1,8-dioxo-octahydroxanthene derivatives using p-dodecylbenzenesulfonic acid (DBSA) as the catalyst (10 mol.%) under ultrasound irradiation is described. This method provides several advantages such as environment friendliness, high yields and simple work-up procedure. In addition, water was chosen as a Green Solvent.
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clean one pot synthesis of 4h pyran derivatives catalyzed by hexadecyltrimethyl ammonium bromide in aqueous media
Synthetic Communications, 2005Co-Authors: Ying Zhao, Tongshuang LiAbstract:Abstract An efficient and convenient synthetic route to 4H‐pyran derivatives in water in the presence of hexadecyltrimethyl ammonium bromide (HTMAB) as catalyst is described. This method provides several advantages such as environment friendliness, high yields, and a simple workup procedure. In addition, water was chosen as a Green Solvent.
Michal Szostak - One of the best experts on this subject based on the ideXlab platform.
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2 methyltetrahydrofuran a Green Solvent for iron catalyzed cross coupling reactions
Chemsuschem, 2018Co-Authors: Elwira Bisz, Michal SzostakAbstract:Iron-catalyzed cross-coupling reactions allow sustainable formation of C-C bonds using cost-effective, earth-abundant base-metal catalysis for complex syntheses of pharmaceuticals, natural products, and fine chemicals. The major challenge to maintain full sustainability of the process is the identification of Green and renewable Solvents that can be harnessed to replace the conventional Solvents for this highly attractive reaction. Herein, iron-catalyzed cross-coupling of aryl chlorides and tosylates with challenging organometallic reagents possessing β-hydrogens is found to proceed in good to excellent yields with the Green, sustainable, and eco-friendly 2-methyltetrahydrofuran (2-MeTHF) as Solvent. The reaction operates with excellent functional group tolerance under very mild conditions. Furthermore, large-scale cross-coupling, cross-coupling of heteroaromatic substrates, and cross-coupling of challenging aryl tosylates and carbamates mediated by Fe-N-heterocyclic carbene catalytic systems in eco-friendly 2-MeTHF were also carried out. The developed method was applied to the key cross-coupling in the synthesis of a fibrinolysis inhibitor, further highlighting the potential of 2-MeTHF as a general Solvent for sustainable iron-catalyzed cross-coupling reactions.
