Faculty Opinions recommendation of Dihydrogen tetrametaphosphate, [P4O12H2]2-: synthesis, solubilization in organic media, preparation of its anhydride [P4O11]2- and acidic methyl ester, and conversion to tetrametaphosphate metal complexes via protonolysis.

2014 ◽  
Author(s):  
Gong Chen ◽  
Nicola Edwards
Keyword(s):  
Methyl Ester ◽  
Metal Complexes ◽  
Organic Media

Metallkomplexe mit biologisch wichtigen Liganden, CLXI [1]. Halbsandwich-Komplexe mit tert-Leucin, Dipeptiden, Pentaglycin und Glutathion als Liganden / Metal Complexes with Biologically Important Ligands, CLXI [1]. Halfsandwich Complexes with tert-Leucine, Dipeptides, Pentaglycine and Glutathione

2005 ◽  
Vol 60 (12) ◽  
pp. 1278-1286 ◽  
Author(s):  
Winfried Hoffmüller ◽  
Harald Dialer ◽  
Wolfgang Beck
Keyword(s):  
Methyl Ester ◽  
Metal Complexes ◽  
Transfer Hydrogenation ◽  
Ru Complexes

Reactions of L-tert-Leucine (tert-butylglycine), tert-leucine methyl ester, GlyValOMe, and Leu- AlaOMe with the chloro-bridged complexes [Cp*IrCl2]2, [(p-cymene)RuCl2]2 or [(C6Me6)RuCl2]2 in the presence of NaOMe give the complexes [Cp*Ir(Cl)NH2CH(R)CO2] (1), [(p-cymene)Ru(Cl)- NH2CH(R)CO2] (2), Cp*Ir(Cl2)[NH2CH(R)CO2Me] (5), {(C6Me6)Ru(Cl)[NH2CH2CONHCH(R)- CO2Me]}+Cl− (6), [Cp*Ir(Cl)NH2CH2CONCH(R)CO2Me] (7), [Cp*Ir(Cl)NH2CH(CH2CHMe2)- CONCH(R)CO2Me)] (8), and Cp*Ir(Cl2)[NH2CH2CONHCH(R)CO2Me) (9). With pentaglycine the complexes [Cp*Ir(Cl2)(pentaglycinate+Na+)] (10) and [(C6Me6)Ru(pentaglycineOMe- H+)] (11) could be isolated. Coordination of one equivalent of the S-protected tripeptide glutathione to [Cp*Ir(Cl)] and to [(C6Me6)Ru(Cl)] was observed. Some in situ prepared (p-cymene)Ru complexes with deprotonated dipeptide esters were tested as catalysts and the complex [(p-cymene)Ru(Cl)(NH2CH(CHMeEt)NCH (CHMe2)CO2tert-Bu)] gave a yield of 73% and moderate entantiomeric excess (36% ee) in the transfer hydrogenation of acetophenone to 2-propanol.

scholarly journals Speciation Studies of Some Metal Complexes with L-Aspartyl-L-phenylalanine Methyl Ester by Potentiometry.

1992 ◽  
Vol 8 (6) ◽  
pp. 755-759 ◽  
Author(s):  
Makoto AIHARA ◽  
Fudeko TANAKA ◽  
Minori FUJIMOTO ◽  
Kô TAKEHARA
Keyword(s):  
Methyl Ester ◽  
Metal Complexes ◽  
Phenylalanine Methyl Ester

Metallkomplexe mit biologisch wichtigen Liganden, LXXIV [1]. Metallorganische Verbindungen von 2-(3-Thienyl)glycin und dessen Derivaten / Metal Complexes with Biologically Important Ligands, LXXIV [1]. Organometallic Compounds of 2-(3-Thienyl)glycine and Derivatives thereof

1994 ◽  
Vol 49 (11) ◽  
pp. 1569-1579 ◽  
Author(s):  
Elfriede Schuhmann ◽  
Christian Robl ◽  
Wolfgang Beck
Keyword(s):  
Methyl Ester ◽  
Metal Complexes ◽  
Phenyl Group ◽  
Organometallic Compounds ◽  
Amino Group ◽  
X Ray Diffraction ◽  
Chelate Complexes ◽  
Tricarbonyl Complex ◽  
X Ray

N.O-Chelate complexes of R,S-2-(3-thienyl)glycinate (L) have been obtained: ML2 (M = Ni, Cu), (n-Bu3P)(Cl)M(L) (M = Pd. Pt), (η3-C3H5)Pd(L), C6H4CH,CHNMe2Pd(L), (η6-p-cymene)(Cl)Ru(L), (η5-C5Me5)(Cl)M(L) (M = Rh, Ir) and (η5-C5H5)(OC)2Mo(L). The methyl ester of R,S-2-(3-thienvl)glycine (L') forms the complexes trans-CT2PdL′2, cis- Cl2Pt(L')2, (η-Bu3P)(Cl2)M(L') (M = Pd, Pt) and (η5-C5Me5)(Cl)2M(L') (M = Rh, Ir) in which the ligand L' is coordinated through the amino group. The structures of (η3-C3H5)Pd(L) and of (η5-C5Me5)(Cl2)Ir(L') have been determined by X-ray diffraction. N- Benzoyl-2-(3-thienylglycine methyl ester reacts with Cr(CO)6 to yield a tricarbonyl complex with an η6-coordinated phenyl group. N-Benzoyl-R,S-2-(3-thienyl)glycinate (L") and (η5- C5H5)2TiCl2 give the diastereoisomers [(η5-C5H5)2Ti(R-L")(R-L")2/(η5-C5H5)2Ti(S-L") (S-L")] and (η5-C5H5)2Ti(R-L")(S-L") with Ti-O-bonds.

Metal Complexes of Biologically Important Ligands, CLV [1]. Some Derivatives of 4-Ethynylphenylalanine

2004 ◽  
Vol 59 (8) ◽  
pp. 865-868 ◽  
Author(s):  
Armin Enzmann ◽  
Wolfgang Beck
Keyword(s):  
Methyl Ester ◽  
Metal Complexes ◽  
Sonogashira Coupling ◽  
Phenylalanine Methyl Ester ◽  
Derivatives Of

AbstractThe benzoyl protected 4-ethynyl-L-phenylalanine methyl ester gives with octacarbonyldicobalt and ethylene-bis(triphenylphosphine)platinum(0) the complexes Co2(CO)6(HC≡CR) and (Ph3P)2 Pt(HC≡CR) (R = p-C6H4CH2CH(CO2Me)N(HCOPh). The heterocumulene [Cp(Ph3P)2Ru=C=C(H)R]+BF4− (R = p-C6H4CH2C(H)N(H)-Boc is formed from [Cp(Ph3P)2Ru]+BF4− and N-t-Boc-4-ethynylphenylalanine methyl ester. The alkynyl bridged tetraamino acid with a tetraphenylmethane backbone C[p-C6H4C≡C-p-C6H4-CH2CH(CO2Me)NH-t- Boc]4 was synthesized from tetrakis(4-iodophenyl)methane and N-Boc-4-ethynylphenylalanine methyl ester by Sonogashira coupling.

Structural study of metal complexes of bisphosphonate amide ester: copper, magnesium, zinc and cadmium complexes of (dichloromethylene)bisphosphonic acid P-piperidinium-P′-methyl ester

CrystEngComm ◽  
2007 ◽  
Vol 9 (2) ◽  
pp. 158-164 ◽  
Author(s):  
Jonna Jokiniemi ◽  
Eija Vuokila-Laine ◽  
Sirpa Peräniemi ◽  
Jouko J. Vepsäläinen ◽  
Markku Ahlgrén
Keyword(s):  
Methyl Ester ◽  
Metal Complexes ◽  
Structural Study ◽  
Cadmium Complexes ◽  
Bisphosphonic Acid

scholarly journals Helical-Ribbon and Tape Formation of Lipid Packaged [Ru(bpy)3]2+ Complexes in Organic Media

2019 ◽  
Vol 20 (13) ◽  
pp. 3298
Author(s):  
Miho Hatakeda ◽  
Souta Toohara ◽  
Takuya Nakashima ◽  
Shinichi Sakurai ◽  
Keita Kuroiwa
Keyword(s):  
Optical Properties ◽  
Metal Complexes ◽  
Organic Media ◽  
Induced Circular Dichroism ◽  
Anionic Lipid ◽  
Helical Ribbon ◽  
Chemical Structures ◽  
Supramolecular Control ◽  
Circular Dichroïsm ◽  
Hypochromic Effect

Anionic lipid amphiphiles with [RuII(bpy)3]2+ complex have been prepared. The metal complexes have been found to form ribbon and tape structures depending on chemical structures of lipid amphiphiles. Especially, the composites showed hypochromic effect and induced circular dichroism in organic media, and flexibly and weakly supramolecular control of morphological and optical properties have been demonstrated.

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