The mass spectra of alkyl 2-diethylphosphonoalkanoates

Add time:07/17/2019    Source:sciencedirect.com

The mass spectra of five alkyl 2-diethylphosphonoalkanoates [(EtO)2P(O)CH(CH2R)CO2R′, where R′ = CH3 or C2H5, and R = H, nC7H15, nC11H23, and (CH2)5CO2CH3] were investigated. A unique, prominent fragment [MR]+ is proposed to result from fission of the bond γ-to both the carboxylic ester and the phosphonate ester. Loss of a C2H3′ radical from the McLafferty rearrangement fragment ion was an important secondary fragmentation process, although loss of this radical from the molecular ion itself was not a very significant process. The NMR spectra of these compounds are discussed.

We also recommend Trading Suppliers and Manufacturers of Ethyl 2-bromotetradecanoate (cas 14980-92-8). Pls Click Website Link as below: cas 14980-92-8 suppliers

Prev:Reinvestigation of the sulfuric acid-catalysed cyclisation of brominated 2-alkyllevulinic acids to 3-alkyl-5-methylene-2(5H)-furanones
Next:Synthesis of benzoylbenzamide derivatives of 17α-E-vinyl estradiol and evaluation as ligands for the estrogen receptor-α ligand binding domain)