Deprotection proceeded with the catalysis of PPTS,followed by mesylization and bromide displacement with sodium bromide to give methyl 4-bromo-2-butynoate. 炔丙醇在PPTS催化下由二氢吡喃保护,与溴乙烷格氏试剂反应生成相应的格氏试剂,然后与氯甲酸甲酯反应得到羟基丁炔酸甲酯四氢吡喃醚,在PPTS催化下脱保护...
In a 100 mL sealed tube, weigh 1.19 g of homoserine (10 mmol), add 16 mL of a 33% hydrogen bromide acetic acid solution, and react in an oil bath at 75°C for 6 hours. Cool to room temperature, concentrate under reduced pressure, remove excess acid, and obtain the crude product of...
4-Bromobutyric acid (CAS 2623-87-2) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers, SDS and more, available at Chemicalbook.
; 4-Brombutters?ure; 4-Bromobutyric acid; 4-Bromobutyric acid; 4 - broMine butyric acid; 4-Bromobutanoic acid; 4-BROMO-N-BUTYRIC ACID; 5-Bromobutyric Acid; Butanoic acid, 4-bromo-; Butyric acid, 4-bromo-; Carboxypropyl bromide; NSC 99322; RARECHEM AL BO 0176; γ-Bromobutyric acid;...
4-(4-Nitrophenoxy)Butanoic Acid CAS No: 28341-54-0 4-BROMOBUTYRONITRILE CAS No: 5332-06-9 Hydrogen bromide CAS No: 10035-10-6 VINYLACETIC ACID CAS No: 625-38-7 4-Phenoxybutanoic acid CAS No: 6303-58-8 Butanoic acid, 4-ethoxy- CAS No: 10374-37-5 5-Bromo-1-pentene CAS...
The product is produced by reacting bromine with a 2-(oxyimino)-3-oxo butyric acid derivative of formula (II) wherein R is as defined above and R 1 is a tert-butyl group in presence of an organic solvent and in presence of a C 1-4 alcohol and acetyl bromide at a temperature ...
The product is produced by reacting bromine with a 2-(oxyimino)-3-oxo butyric acid derivative of formula (H) wherein R is as defined above and R1 is a tert-butyl group in presence of an organic solvent and in presence of a C1-4 alcohol and acetyl bromide at a temperature ranging ...