Category «Uncategorized»

One-pot synthesis of 2-hydroxymethyl-5-methylpyrazine from renewable 1,3-dihydroxyacetone

It’s only fair to share…   One-pot synthesis of 2-hydroxymethyl-5-methylpyrazine from renewable 1,3-dihydroxyacetone Green Chem., 2017, Advance Article DOI: 10.1039/C7GC00578D, Communication Lei Song, Mingyuan Zheng, Jifeng Pang, Joby Sebastian, Wentao Wang, Minjie Qu, Jian Zhao, Xinhong Wang, Tao Zhang An efficient and environmentally benign method for the synthesis of 2-hydroxymethyl-5-methylpyrazine (HMMP) from biomass derived 1,3-dihydroxyacetone …

Lisdexamphetamine

It’s only fair to share… Lisdexamfetamine Molecular FormulaC15H25N3O Average mass263.379 Da 608137-32-2 [RN] Elvanse [Trade name] Hexanamide, 2,6-diamino-N-[(1S)-1-methyl-2-phenylethyl]-, (2S)- Lisdexamfetamine L-lysine-d-amphetamine (2S)-2,6-diamino-N-[(2S)-1-phenylpropan-2-yl]hexanimidic acid H645GUL8KJ L-lysine-(+)-amphetamine NRP104|Vyvanse® UNII:H645GUL8KJ UNII-H645GUL8KJ Vyvanse® CAS 608137-33-3 (2S)-2,6-Diamino-N-[(1S)-1-methyl-2-phenylethyl]hexanamide dimethanesulfonate https://www.google.com/patents/WO2005032474A2 Applicants: NEW RIVER PHARMACEUTICALS INC. [US/US]; The Governor Tyler, 1881 Grove Avenue, Radford, VA 24141 (US) (For All Designated States Except US). …

Iridium-catalyzed highly efficient chemoselective reduction of aldehydes in water using formic acid as the hydrogen source

It’s only fair to share…   Iridium-catalyzed highly efficient chemoselective reduction of aldehydes in water using formic acid as the hydrogen source Green Chem., 2017, Advance Article DOI: 10.1039/C7GC01289F, Paper Zhanhui Yang, Zhongpeng Zhu, Renshi Luo, Xiang Qiu, Ji-tian Liu, Jing-Kui Yang, Weiping Tang A highly efficient iridium catalyst is developed for the chemoselective reduction …

Selective synthesis of dimethoxyethane via directly catalytic etherification of crude ethylene glycol

It’s only fair to share…   Selective synthesis of dimethoxyethane via directly catalytic etherification of crude ethylene glycol Green Chem., 2017, Advance Article DOI: 10.1039/C7GC00659D, Paper Weiqiang Yu, Fang Lu, Qianqian Huang, Rui Lu, Shuai Chen, Jie Xu A potential diesel fuel additive, dimethoxyethane, was highly selectively produced via etherification of crude ethylene glycol over …

Selective hydrogenation of N-heterocyclic compounds using Ru nanocatalysts in ionic liquids

It’s only fair to share…   Selective hydrogenation of N-heterocyclic compounds using Ru nanocatalysts in ionic liquids Green Chem., 2017, 19,2762-2767 DOI: 10.1039/C7GC00513J, Communication Hannelore Konnerth, Martin H. G. Prechtl N-Heterocyclic compounds have been tested in the selective hydrogenation catalysed by small 1-3 nm sized Ru nanoparticles (NPs) embedded in various imidazolium based ionic liquids …

Is water a suitable solvent for the catalytic amination of alcohols?

It’s only fair to share… Is water a suitable solvent for the catalytic amination of alcohols? Green Chem., 2017, 19,2839-2845 DOI: 10.1039/C7GC00422B, Paper Johannes Niemeier, Rebecca V. Engel, Marcus Rose The catalytic aqueous-phase amination of biogenic alcohols with solid catalysts is reported for future development of renewable amine value-added chains. From the journal: Green Chemistry …

Efficient and Stereoselective Syntheses of Isomerically Pure 4-Aminotetrahydro-2H-thiopyran 1-Oxide Derivatives

It’s only fair to share… trans-4-Aminotetrahydro-2H-thiopyran 1-Oxide Methanesulfonate (trans–3d-MsOH) Compound ……………….afforded trans-3d-MsOH (20 g, 68%) as a white crystalline solid. 1H NMR (300 MHz, DMSO-d6) δ 1.60–1.76 (2H, m), 2.16–2.29 (2H, m), 2.31 (3H, s), 2.68–2.81 (2H, m), 3.13–3.23 (2H, m), 3.27–3.35 (1H, m), 7.86 (3H, brs). 13C NMR (75 MHz, D2O) δ 24.98, 38.51, …

Tropylium salts as efficient organic Lewis acid catalysts for acetalization and transacetalization reactions in batch and flow

It’s only fair to share… Tropylium salts as efficient organic Lewis acid catalysts for acetalization and transacetalization reactions in batch and flow Green Chem., 2017, Advance Article DOI: 10.1039/C7GC01519D, Communication D. J. M. Lyons, R. D. Crocker, D. Enders, T. V. Nguyen Tropylium salts were reported as organic-Lewis acids to efficiently catalyze acetalization reactions in …

CP 11

It’s only fair to share…     Scheme 10 Synthesis of C60-PGN and C60-GAP. It has been calculated that the enthalpy of formation of Cp-5 is 2782.2 kJ mol−1, while its detonation velocity and pressure are 3282 km s−1 and 4.443 GPa, respectively.112 Upon complete combustion, the total heat of combustion for Cp-5 is 2.17 …