N,N′-Dimethylpropyleneurea (DMPU) is a cyclic urea sometimes used as a polar, aprotic organic solvent. In 1985, Dieter Seebach showed that it is possible...

high thermal and chemical stability. It is a homolog of the related solvent DMPU. It can be prepared from 1,2-dimethylethylenediamine by reaction with phosgene...

metal cations. Other alternatives to HMPA include the N,N′-tetraalkylureas DMPU (dimethylpropyleneurea) or DMI (1,3-dimethyl-2-imidazolidinone). Tripyrrolidinophosphoric...

coordinated with pyridine and HMPA ligands, although the HMPA can be replaced by DMPU. It is an electrophilic source of oxygen that reacts with enolates and related...

(Z)-enolate transition state. Addition of polar additives such as HMPA or DMPU favors the formation of (Z) enolates. The Ireland model argues that these...

very polar solvents. Solvent Yield ( % ) CH 2 Cl 2 1 THF 9 Me 2 NCOH 56 DMPU 89 HMPA 91 {\displaystyle {\begin{array}{lr}{\ce {Solvent}}&{\ce {Yield}}(\%)\\\hline...

‘DC Motor’ DSP — ‘Digital Signal Processor’ MPU — ‘MicroProcessing Unit’ DMPU — ‘Dual MicroProcessing Unit’ Weather-sealing technology MR — ‘Moisture-Resistant’...

BioMedicinal Chemistry 2004 The Ryoji Noyori Prize 2019 Arthur C. Cope Award TADDOL DMPU Chiral column chromatography Corey-Seebach reaction Hook, David F. (2004)...

alkylation of α-branched amide enolates is also possible, though the addition of DMPU is necessary for less reactive electrophiles. Conditions have been developed...

compared to the corresponding magnesium salt. In some cases, an equivalent of DMPU, a Lewis base, will increase yields. For example, treating benzaldehyde with...