The angular coumarino-7: 8-α-pyrone is the major product (95%) and its constitution is established from its preparation from umbelliferon-8-aldehyde by the Perkin's reaction. The second compound which should be the linear coumarino-7: 6-α-pyrone is formed in a very small yield only ...
1) 7-hydroxy-6-methoxy coumarin 7-羟基-4-甲氧基苯甲醛2) Methylprotocatechuic aldehyde 4-羟基-3-甲氧基苯甲醛 例句>> 3) Benzaldehyde,4-hydroxy-3-methoxy- 3-甲氧基-4-羟基苯甲醛4) 2-Hydroxy-4-methoxybenzaldehyde 2-羟基-4-甲氧基苯甲醛...
26 CFN99315 Veratraldehyde 藜芦醛; 3,4-二甲氧基苯甲醛 120-14-9 C9H10O3 166.2 Phenols 27 CFN99320 Ethylparaben 尼泊金乙酯 120-47-8 C9H10O3 166.2 Phenols 28 CFN99329 1,2-Benzenediol 邻苯二酚 120-80-9 C6H6O2 110.1 Phenols 29 CFN99331 Vanillic acid 香草酸 121-34-6 C8H8O4 168.2...
4,6-Dimethylnicotinaldehyde 116785-23-0 C8H9NO 4-[2-(trans-4-Propylcyclohexyl)ethyl]cyclohexanone 4-〔2-(trans-4-プロピルシクロヘキシル)エチル〕シクロヘキサノン 117923-32-7 C17H30O 1,2-Difluoro-4-[trans-4-[2-(trans-4-propylcyclohexyl)ethyl]cyclohexyl]benzene 1,2-ジフルオロ...
7-hydroxy-4-methyl-coumarinthioglycollic acidbenzi-dineethylacetotatearylaldehydeThe synthesis of N-[p-(3'-(2'-aryl-4'-oxo-l',3'-thiazolyl)ldiphenyl]-7-hydroxy-4-methyl-2-oxoquinolines 4 have been achieved starting from resorcinol.7-hydroxy-4-methylcoumarin(4-methylumbelliferone)1 is ...