A5012099634- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Organophosphorus compounds synthesis
- Organometallic Complex Synthesis and Catalysis
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Synthesis and characterization of novel inorganic/organometallic compounds
- Phosphorus compounds and reactions
- Metal complexes synthesis and properties
- Crystallography and molecular interactions
- Crystal structures of chemical compounds
- Catalytic Cross-Coupling Reactions
- Coordination Chemistry and Organometallics
- Asymmetric Hydrogenation and Catalysis
- Asymmetric Synthesis and Catalysis
- Advanced Synthetic Organic Chemistry
- Ferrocene Chemistry and Applications
- Chemical Reaction Mechanisms
- Organoboron and organosilicon chemistry
- Chemical Synthesis and Analysis
- Magnetism in coordination complexes
- Boron Compounds in Chemistry
- Inorganic and Organometallic Chemistry
- Nanocomposite Films for Food Packaging
- Sphingolipid Metabolism and Signaling
- DNA and Nucleic Acid Chemistry
Universidad Autónoma del Estado de Morelos
2013-2024
CIUDAD
2020
Universidad Del Valle De Cuernavaca
2020
Université Toulouse III - Paul Sabatier
1995-2005
Softmat - Chimie des colloïdes, polymères & assemblages complexes
2005
Instituto Politécnico Nacional
2001-2002
Center for Research and Advanced Studies of the National Polytechnic Institute
2001-2002
Centro de Investigación en Materiales Avanzados
2000-2001
Centre National de la Recherche Scientifique
1995-2000
Inserm
1999
Kinetic modeling using nonlinear differential equations is proposed to analyze the spontaneous generation of enantiomeric excess in autocatalytic addition diisopropylzinc prochiral pyrimidine carbaldehydes (Soai reaction). Our approach reproduces experimentally observed giant chiral amplification from an initial <10 –6 % >60%, high sensitivity and positive response presence minute amounts initiator at concentrations –14 M, absolute asymmetric synthesis achiral starting conditions. From...
Lysophosphatidic acid (1-acyl-sn-glycero-3-phosphate or LPA) is a phospholipid mediator displaying numerous and widespread biological activities thought to act via G-protein-coupled receptors. Here we have studied the effects on human platelets of number LPA analogues, including two enantiomers both N-palmitoyl-(l)-serine-3-phosphate ((l) (d)NAPS for N-acyl-phosphoserine) 2-(R)-N-palmitoyl-norleucinol-1-phosphate ((R) (S)PNPA), cyclic analogues 1-acyl-sn-glycero-3-phosphate (cPA)...
Abstract The preferred conformation of aminophosphanes with bulky amino groups ( 1–20 ) was determined by NMR spectroscopy in solution, two cases the solid state 11,17 and one case 11 X‐ray crystallography. Trimethylsilylaminodiphenylphosphanes Ph 2 PN(R)SiMe 3 (R = Bu 1 ), 2‐pyridyl 2‐pyrimidyl 4 Me Si 5 )), amino(chloro)phenylphosphanes Ph(Cl)PNRR′ Bz, R′ 6 R t 7 Et, 8 amino(chloro) tert ‐butylphosphanes Bu(Cl)PNRR′ i Pr 9 Me, 10 H, 12 13 Pr, 14 Bu, 15 16 17 18 3‐...
Reaction of [Me3SiNPPh2CH3] 1 with ZnCl2 yields the dimer [ClZn(μ-Cl)(Me3SiNPPh2CH3)]22 whereas treatment AlCl3 in THF leads to monomeric N adduct [Cl3Al(Me3SiNPPh2CH3)] 3. Compounds 2 and 3 were found be thermally stable fully characterized by NMR spectroscopy, X-ray diffraction, elemental analysis. On other hand, phosphinimine nBuLi/ZnCl2 or (CH3)2CHMgCl zinc magnesium complexes [M4(Me3SiNPPh2CH2)4(μ4-O)(μ2-Cl)2] 5 (M = Zn) 6 Mg), respectively. These compounds can considered as new...
Abstract A series of aminodiphenylphosphanes 1 [Ph 2 P‐N(H)tBu ( a ), ‐NEt b ‐NiPr c )], P‐NHPh ‐NH‐2‐pyridine ‐NH‐3‐pyridine ‐NH‐4‐pyridine d NH‐pyrimidine e NH‐2,6‐Me ‐C 6 H 3 f NH‐3‐Me‐2‐pyridine g P‐N(Me)Ph ‐NPh and N‐pyrrolyldiphenylphosphane 4 (Ph P‐NC ) was prepared studied by NMR H, 13 C, 31 P, 15 N NMR) spectroscopy. The isotope‐induced chemical shifts Δ 14/15 N( P) were determined at natural abundance using HEED INEPT experiments. dependence on the substituents nitrogen found...
Dichloro and chloromethyl Ga(III) complexes of general formulae [XClGa-eta2-{R2P(E)NP(E'R'2-E,E'}](X = Cl, R, R'= Ph, E, E'= O (1), S (2), Se (3); R OEt, E O, (4); Me, (5) X (6), (7), (8)) were synthesised by either metathesis reactions between GaCl3 the potassium salt ligand (X Cl) or methane eliminations from in situ prepared GaMe2Cl protonated ligands LH Me). Redistribution reaction (3) CDCl3 THF afforded solvent-free tetracoordinate gallium spirocycle cation...
New Ru(<sc>ii</sc>) half-sandwich complexes stabilized by tridentate iminophosphorane N,N,S or N,N,Se ligands show potent cytotoxic activity with high selectivity.
Abstract The stereochemistry as well the molecular modelling of dioxazaphosphocanes 3a - 3c, 4a 4c, 9, 11, 12, 13 and 14 underline direct connexion between conformation dioxazaphosphocane eight membered ring substitution on carbon atoms this ring.
This study has established that the products of reaction phenoxy derivative 4a with p-anisidine are not phosphoramides 7a and 4b, but salts 11a 12, confirming only ammoniolysis takes place. These results discussed in terms mechanism (addition-elimination critical deprotonation primary zwitterionic intermediate A formed) influence steric hindrance. Methanolysis methylamino 4d, as all phospholidines type 4 studied so far, proceeds two distinct stages. The monoester 8d can be characterized,...
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In the title compound, C28H22OP2, each of P atoms has an almost perfect pyramidal geometry, with C-P-C angles varying from 100.63 (10) to 102.65 (9)°. crystal, neighbouring mol-ecules are linked via weak C-H⋯π inter-actions, forming supra-molecular chains along b-axis direction.
In the title salt, C23H21NOP(+)·Br(-), dihedral angles between phenyl rings are 70.41 (18), 73.6 (2) and 80.85 (19)°. crystal, neighboring mol-ecules linked through an N-H⋯Br hydrogen bond four weak C-H⋯Br contacts, forming a three-dimensional network.
The reaction of constrained dioxazaphosphabicyclo[3.3.0]octane with acid chlorides provides a facile and efficient one-pot route to eight membered cyclic phosphoric thiophosphoric esters.