117872-49-8Relevant academic research and scientific papers
Solvent-free, efficient synthesis of 2,5-piperazinediones from Boc-protected dipeptide esters under microwave irradiation
López-Cobe?as, Alberto,Cledera, Pilar,Sánchez, J. Domingo,Pérez-Contreras, Rafael,López-Alvarado, Pilar,Ramos, M. Teresa,Avenda?o, Carmen,Menéndez, J. Carlos
, p. 1158 - 1160 (2005)
Microwave irradiation allows the efficient, solvent-free transformation of N-Boc dipeptide esters into 2,5-piperazinediones. The microwave-assisted conditions were found to be much better than traditional heating in terms of reaction time, yield and stere
Microwave-assisted synthesis of 2,5-piperazinediones under solvent-free conditions
Lopez-Cobenas, Alberto,Cledera, Pilar,Sanchez, J. Domingo,Lopez-Alvarado, Pilar,Ramos, M. Teresa,Avendano, Carmen,Menendez, J. Carlos
, p. 3412 - 3422 (2007/10/03)
A general, efficient and environmentally friendly procedure for the synthesis of 2,5-piperazinediones is described, involving the microwave irradiation of N-Boc dipeptide esters. Georg Thieme Verlag Stuttgart.
Synthetic Studies on Bicyclomycin and its Analogues. Part 1. Synthesis of Substituted 2-Oxa-8,10-diazabicyclodecanes
Dawson, Ian M.,Gregory, Julian A.,Herbert, Richard B.,Sammes, Peter G.
, p. 2585 - 2594 (2007/10/02)
Methods have been developed for formation of the eight-membered oxygen-containing ring system (2) present in the antibiotic bicyclomycin.The procedure starts with N,N'-disubstituted piperazine-2,5-diones or the corresponding mono imino ethers.A new method is based on the oxidation of the mono imino ethers using 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) as oxidant: the bis imino ethers gave pyrazines under these conditions, whilst the parent piperazinedione proved to be unreactive.
