英文名称: (E)-Ethyl 4-oxopent-2-enoate 英文同义词: (E)-Ethyl 4-oxopent-2-enoate;(E)-Ethyl 4-oxo-2-pentenoate;Ethyl trans-4-oxo-2-pentenoate;(2E)-4-Oxo-2-pentenoic acid ethyl ester;Ethyl (E)-4-oxopent-2-enoate;2-Pentenoic acid, 4-oxo-, ethyl ester, (2E)-;ethyl (2E)-4-ox...
Some other possible criteria for cis-trans assignations are discussed. The conclusions are corroborated by the spectrum of the isomeric 3-ethyl-2-pentenoate ( C ).doi:10.1002/bscb.19680770702M. AnteunisA. De BruynH. De PooterG. Verhegge...
英文名称:ethyl (E)(S)-3-(2,2-dimethyl[1,3]dioxolane-4-yl)-2-methylacrylate 英文别名:.ethyl (S,E)-4,5-isopropylidenedioxy-2-methylpent-2-enoate; .ethyl (4S)-2-methyl-4,5-isopropylidenedioxy-trans-2-pentenoate; .(S,E)-ethyl 3-(2,2-dimethyl-1,3-dioxolan-4-yl)-2-methylacrylate...
2-methyl-2-pentenal, methyl 3-pentenoate, methacrylic anhydride. In one variant of the process, the ethylenically unsaturated compound is selected from propene, 1-butene, cis- and/or trans-2-butene, or mixtures thereof. In one variant of the process, the ethylenically unsaturated compound is...
2-acetyl-3,4,5,6-tetrahydropyridineFL allyl 2-furoateFL benzyl disulfideFL cistus ladaniferus resinoidFL/FR diethyl malateFL/FR 2,5-diethyl tetrahydrofuranFL alpha,alpha-dimethyl anisyl acetoneFL/FR ethyl 2-hydroxy-2-methyl butyrateFL/FR ethyl 4-pentenoateFL/FR trans-1-ethyl-2-methyl propyl ...
A synthesis of the title compounds 5 involves the reaction between 3-methyl-2-buten-1-ol and triethyl orthoacetate to produce ethyl 3,3-dimethyl-4-pentenoate, which is followed by the addition of various carbon tetrahalides to the double bond. The reaction of resulting adducts with a base ...
Only the cis -isomer 14 could be further transformed to 3-(bromomethyl)-2-(tosylamino)-4-pentenoate 17 , and in a smoth cyclization with K 2 CO 3 , to trans -3-vinylazetidtene-2-carboxylaze 18 ( Scheme 2 ). In the second approach, the 3-ethylidene isomer 19 of 18 was obtained...