m-Chloroperbenzoic acid (MCPBA), LiCl, tert-butylammonium fluoride (TBAF·3H2O), tert-butylammonium hydroxide (TBAH), 4-dimethylaminopyridine (DMAP), iBu3Al solution (25% in toluene), eugenol, 2,2-dimethoxy-2-phenylacetophenone (DMPA), t-butyldimethylsilyl chloride (TBDMSCl), thioglycolic acid, cysteamine and safrole were purchased from Sigma Aldrich. MePPh3Br and imidazole from Fluka, 1 M tert-butylammonium fluoride (TBAF) solution in THF from ChemCruz, and diphenylsilane and B(C6F5)3 from Alfa Aesar were used as received without any further purification. 4-Allylcatechol was prepared by reacting eugenol with LiCl in dimethyl formamide (DMF) as described.34 (link) Allyl glycidyl ether (AGE) from Sigma Aldrich was dried over CaH2 and distilled. Pb(AcO)4 was freshly prepared.35 Membrane (Spectra/Por) with a MWCO of 6000–8000 Daltons was purchased from Spectrum Laboratories, Inc.
Tert butylammonium hydroxide
Manufactured by Merck Group
Sourced in Germany
Tert-butylammonium hydroxide is a quaternary ammonium compound used as a laboratory reagent. It is a strong base that is commonly used in various chemical synthesis and analysis applications.
Automatically generated - may contain errors
Lab products found in correlation
Thioglycolic acid, by Merck Group (1 mentions)
Diphenylsilane, by Thermo Fisher Scientific (1 mentions)
Safrole, by Merck Group (1 mentions)
Eugenol, by Merck Group (1 mentions)
B c6f5 3, by Thermo Fisher Scientific (1 mentions)
2 2 dimethoxy 2 phenylacetophenone dmpa, by Merck Group (1 mentions)
Cysteamine, by Merck Group (1 mentions)
Triethanolamine, by Avantor (1 mentions)
Kh2po4, by Loba Chemie (1 mentions)
K2hpo4, by Loba Chemie (1 mentions)
H3po4, by Loba Chemie (1 mentions)
Hplc grade acetonitrile, by Scharlab (1 mentions)
2 protocols using tert butylammonium hydroxide
1
Synthesis of Allylated Catechol Derivatives
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m-Chloroperbenzoic acid (MCPBA), LiCl, tert-butylammonium fluoride (TBAF·3H2O), tert-butylammonium hydroxide (TBAH), 4-dimethylaminopyridine (DMAP), iBu3Al solution (25% in toluene), eugenol, 2,2-dimethoxy-2-phenylacetophenone (DMPA), t-butyldimethylsilyl chloride (TBDMSCl), thioglycolic acid, cysteamine and safrole were purchased from Sigma Aldrich. MePPh3Br and imidazole from Fluka, 1 M tert-butylammonium fluoride (TBAF) solution in THF from ChemCruz, and diphenylsilane and B(C6F5)3 from Alfa Aesar were used as received without any further purification. 4-Allylcatechol was prepared by reacting eugenol with LiCl in dimethyl formamide (DMF) as described.34 (link) Allyl glycidyl ether (AGE) from Sigma Aldrich was dried over CaH2 and distilled. Pb(AcO)4 was freshly prepared.35 Membrane (Spectra/Por) with a MWCO of 6000–8000 Daltons was purchased from Spectrum Laboratories, Inc.
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m-Chloroperbenzoic acid (MCPBA), LiCl, tert-butylammonium fluoride (TBAF·3H2O), tert-butylammonium hydroxide (TBAH), 4-dimethylaminopyridine (DMAP), iBu3Al solution (25% in toluene), eugenol, 2,2-dimethoxy-2-phenylacetophenone (DMPA), t-butyldimethylsilyl chloride (TBDMSCl), thioglycolic acid, cysteamine and safrole were purchased from Sigma Aldrich. MePPh3Br and imidazole from Fluka, 1 M tert-butylammonium fluoride (TBAF) solution in THF from ChemCruz, and diphenylsilane and B(C6F5)3 from Alfa Aesar were used as received without any further purification. 4-Allylcatechol was prepared by reacting eugenol with LiCl in dimethyl formamide (DMF) as described.34 (link) Allyl glycidyl ether (AGE) from Sigma Aldrich was dried over CaH2 and distilled. Pb(AcO)4 was freshly prepared.35 Membrane (Spectra/Por) with a MWCO of 6000–8000 Daltons was purchased from Spectrum Laboratories, Inc.
2
Azithromycin Analytical Method Development
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Analytical grade KH2PO4, K2HPO4 and H3PO4 were from Loba Chemie Pvt. Ltd. (Mumbai, India) while triethylamine and triethanolamine were from BDH Laboratory Supplies (Poole, UK). Tert-butylammonium hydroxide was from Sigma-Aldrich (Steinheim, Germany). HPLC grade acetonitrile (Scharlau, Barcelona, Spain) was used as organic modifier. Purified water was prepared using distillation by GFL distillation machine type 2001/4 (Gesellschaft für Labortechnik mbH, Burgwedel, Germany). Azithromycin dihydrate working standard was donated by the Drug Analysis and Research Unit, University of Nairobi, Kenya. The working standards of erythromycin A oxime, erythromycin A imino ether, N-demethylazithromycin, decladinosylazithromycin and azathromycin standards were purchased from Pfizer Inc. (Groton, CT, USA). Azithromycin tablets and suspensions were randomly purchased from various pharmacies in the Central Business District of the City of Nairobi. The innovator brand, Zithromax®, was from Pfizer Laboratories Ltd. (Nairobi, Kenya). Azithromycin bulk sample was from SkyLight Chemicals (Nairobi, Kenya).
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