• Thumbnail for DMPU
    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...
    4 KB (172 words) - 07:31, 20 November 2021
  • Thumbnail for 1,3-Dimethyl-2-imidazolidinone
    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...
    3 KB (174 words) - 09:00, 2 September 2024
  • Thumbnail for Hexamethylphosphoramide
    metal cations. Other alternatives to HMPA include the N,N′-tetraalkylureas DMPU (dimethylpropyleneurea) or DMI (1,3-dimethyl-2-imidazolidinone). Tripyrrolidinophosphoric...
    9 KB (782 words) - 00:53, 23 October 2024
  • Thumbnail for MoOPH
    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...
    7 KB (694 words) - 14:07, 14 July 2024
  • Thumbnail for Organolithium reagent
    (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...
    55 KB (5,971 words) - 20:35, 22 July 2024
  • 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...
    13 KB (1,452 words) - 16:57, 15 August 2024
  • Thumbnail for Tamron
    ‘DC Motor’ DSP — ‘Digital Signal Processor’ MPU — ‘MicroProcessing Unit’ DMPU — ‘Dual MicroProcessing Unit’ Weather-sealing technology MR — ‘Moisture-Resistant’...
    78 KB (4,587 words) - 01:18, 28 September 2024
  • Thumbnail for Dieter Seebach
    BioMedicinal Chemistry 2004 The Ryoji Noyori Prize 2019 Arthur C. Cope Award TADDOL DMPU Chiral column chromatography Corey-Seebach reaction Hook, David F. (2004)...
    4 KB (297 words) - 19:31, 12 October 2023
  • Thumbnail for Chiral auxiliary
    alkylation of α-branched amide enolates is also possible, though the addition of DMPU is necessary for less reactive electrophiles. Conditions have been developed...
    34 KB (3,692 words) - 20:40, 22 July 2024
  • Thumbnail for N-tert-Butylbenzenesulfinimidoyl chloride
    compared to the corresponding magnesium salt. In some cases, an equivalent of DMPU, a Lewis base, will increase yields. For example, treating benzaldehyde with...
    8 KB (615 words) - 13:50, 26 August 2024