Search Results - "Kötteritzsch, Manuela"
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Synthesis of Cellulose Tricarbonates in 1-Butyl-3-methylimidazolium Chloride/Pyridine
Published in Macromolecular bioscience (01-02-2014)“…Cellulose phenyl tricarbonates could be synthesized by a novel and fast procedure applying 1‐butyl‐3‐methylimidazolium chloride/pyridine as reaction medium…”
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2
Homogeneous Sulfation of Xylan from Different Sources
Published in Macromolecular materials and engineering (16-06-2011)“…Xylan sulfates have been prepared under homogeneous reaction conditions in DMF/LiCl applying SO3/pyridine and SO3/DMF. The degree of substitution (DSSulfate)…”
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Synthesis and characterization of methyl xylan
Published in Carbohydrate polymers (04-11-2008)“…The synthesis of methyl xylan using methyl chloride and methyl iodide as etherifying agent under varying reaction conditions was studied. The reaction of xylan…”
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Study on Synthesis and NMR Characterization of 2,3-O-Hydroxyethyl Cellulose Depending on Synthesis Conditions
Published in Macromolecular symposia. (01-08-2010)“…The synthesis of hydroxyethyl celluloses with regioselective functionalization in position 2 and 3 starting from triphenylmethyl (trityl) cellulose is…”
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Synthesis of Cellulose Tricarbonates in 1‐ B utyl‐3‐methylimidazolium Chloride/ P yridine
Published in Macromolecular bioscience (01-02-2014)Get full text
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6
2,3-O-Methyl cellulose: studies on synthesis and structure characterization
Published in Cellulose (London) (01-04-2010)“…The synthesis of methyl celluloses with a regioselective functionalization in position 2 and 3 starting from trityl cellulose is described. The effects of…”
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7
Biomimetic Hydroxylation of Nonactivated CH2 Groups with Copper Complexes and Molecular Oxygen
Published in Angewandte Chemie International Edition (21-07-2003)“…Copper(I) complexes with steroidal ligands (see formula) undergo regio‐ and stereoselective γ‐hydroxylation in the 12β‐position of the steroid in the presence…”
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8
Conformational Design for 13α-Steroids
Published in Journal of organic chemistry (08-09-2000)“…The diastereomeric 16-bromo- and 16-azido-17-alcohols 5−8, 11, 12, 16, and 17 and 17-ketones 3, 4, 9, and 10 of the 13α-estra-1,3,5(10)-triene series were…”
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9
Biomimetic Hydroxylation of Nonactivated CH 2 Groups with Copper Complexes and Molecular Oxygen
Published in Angewandte Chemie International Edition (21-07-2003)Get full text
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10
Addition reactions at the 16(17) double bond of 3-methoxy-13alpha-estra-1,3,5(10),16-tetraene
Published in Steroids (01-03-2003)“…The epoxidation, the addition of hypobromous acid, and the hydroboration of 3-methoxy-13alpha-estra-1,3,5(10),16-tetraene 1 with diborane, catecholborane, and…”
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11
Synthesis of N , N -bis[2-(2-pyridyl)ethyl]amino steroids and related compounds intended as chiral ligands for copper ions
Published in Tetrahedron: asymmetry (02-06-2000)Get full text
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12
Addition reactions at the 16(17) double bond of 3-methoxy-13α-estra-1,3,5(10),16-tetraene
Published in Steroids (01-03-2003)“…The epoxidation, the addition of hypobromous acid, and the hydroboration of 3-methoxy-13α-estra-1,3,5(10),16-tetraene 1 with diborane, catecholborane, and…”
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13
Steroid imines as chiral ligands. Diastereoselective formation of (1-azadiene)Fe(CO) 3 complexes by sterically tuning the ligand coordination spheres
Published in Tetrahedron: asymmetry (30-07-1999)“…The condensation of steroid amines with α,β-unsaturated aldehydes leads to the formation of chiral 1-azadiene ligands with a steroid core attached to nitrogen…”
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14
Biomimetische Hydroxylierungen nichtaktivierter CH 2 ‐Gruppen mit Kupferkomplexen und molekularem Sauerstoff
Published in Angewandte Chemie (21-07-2003)Get full text
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Biomimetische Hydroxylierungen nichtaktivierter CH2-Gruppen mit Kupferkomplexen und molekularem Sauerstoff
Published in Angewandte Chemie (21-07-2003)Get full text
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Biomimetische Hydroxylierungen nichtaktivierter CH2‐Gruppen mit Kupferkomplexen und molekularem Sauerstoff
Published in Angewandte Chemie (21-07-2003)“…Kupfer(I)‐Komplexe von Steroidliganden (siehe Formel) reagieren mit molekularem Sauerstoff unter regio‐ und stereoselektiver γ‐Hydroxylierung der 12β‐Stellung…”
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