Results 131 to 140 of about 50,209 (265)
, 2001 Enantiomerically pure (S)-piperazine-2-carboxylic acid was synthesized by kinetic resolution of methyl-4-(tert-butyroxycarbonyl)-piperazine-2-carboxylate using a low cost enzyme ...
Wei, Dean +4 more
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Small, EarlyView.A multifunctional synergistic management strategy utilizing π‐conjugated terpyridine‐zinc(II) (ZnTPY) coordination nanosheets (CONASHs) to precisely mediate controlled heterogeneous nucleation kinetics and efficient spectral down‐conversion, aiming for the synchronous comprehensive improvement of power conversion efficiency and long‐term operational ...
Dhruba B. Khadka +14 more
wiley +1 more source
, 2016 The design, synthesis, and solid-state structures of a new class of xylylene-linked bis(1,4-piperazine-2,5-diones) (bis-DKPs) are reported in an effort to extend the molecular framework of piperazine-2,5-diones.
Lajos Z. Szabó (2376508) +3 more
core +1 more source
Safety Science and Technology, EarlyView.Chitosan oligosaccharides, as the modifier, significantly enhances the crosslinking degree of piperazine pyrophosphate and melamine polyphosphate, enabling the composite coating to form the interpenetrating network integrating Si‐P‐C‐N during combustion.
YuPing Cao +4 more
wiley +1 more source
Ethyl 4-(phenylsulfonyl)piperazine-1-carboxylate
, 2011 In the title compound, C13H18N2O4S, the piperazine ring adopts a chair conformation. The dihedral angle between the least-squares planes through the piperazine and benzene rings is 73.23 (10)°.
Hassan H. Adballah +4 more
core +1 more source
Safety Science and Technology, EarlyView.Novel vinyl‐containing intumescent flame retardants NV and MV were applied to TPV. The optimized 6NV/4MV system forms dense char layers to boost fire safety, and maintain mechanical performance without compatibilizers. ABSTRACT To meet the dual demands for flame retardancy and mechanical performance of thermoplastic vulcanizate (TPV), two ...
Xiaomei Li +5 more
wiley +1 more source
Bioassay of piperazine and some plant products with earthworms.
, 1960 A bioassay method for estimating piperazine citrate and other vermicidal agents has been reported. Application of the bioassay method, based on the response of earthworms (Pheretima sp,) to the drugs in Ringer.Locke medium for rapid screening of ...
Krishnakumari, M. K., Majumder, S. K.
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A Facile Synthesis of Dragmacidin B and 2,5-Bis(6‘-bromo-3‘-indolyl)piperazine
, 2016 A short synthesis of dragmacidin B (1), 2,5-bis(6‘-bromo-3‘-indolyl)piperazine (2), and corresponding didebromo analogues 8 and 9 is described. The key steps involve the dimerization of oxotryptamines 4 and 11 to give bis(indolyl)pyrazines 5 and 12 ...
Fumiko Y. Miyake (2702866) +2 more
core +1 more source
Probing skin photoallergens in reconstructed human epidermis: An EPR spin trapping investigation
Photochemistry and Photobiology, Volume 101, Issue 2, Page 275-281, March/April 2025.We present an original proof‐of‐concept methodology to probe radical generation from allergens in contact with photoexposed skin, using electron paramagnetic resonance and spin trapping in a reconstructed human epidermis model mimicking real‐life exposure scenarios.
Yannick Port‐Lougarre +3 more
wiley +1 more source
1-(2-NITROPHENYL)PIPERAZINE: NMR, RAMAN, FTIR AND DFT STUDIES
, 2016 Structure of 1-(2-nitrophenyl)piperazine (NPP, C10H13N3O2) was characterized by nuclear magnetic resonance (NMR), Fourier transform infrared (FTIR) and Raman techniques.
Özgür Alver, Cemal Parlak
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