scholarly journals Structural Analysis of 2-Benzyl-3-[3-(4-bromo-phenyl)-1-phenyl-1H-pyrazol-4yl]-4,6-dioxo-5-phenyl-octahydro-pyrrolo[3,4-C]pyrrole-1-carboxylic Acid Ethyl Ester through X-ray Crystallography

2015 ◽  
Vol 8 (3) ◽  
pp. 192-203
Author(s):  
Jagadeesan Ganapathy ◽  
M. Pramesh ◽  
P.T. Perumal ◽  
Aravindhan Sanmargam
Keyword(s):  
Structural Analysis ◽  
Carboxylic Acid ◽  
Ethyl Ester ◽  
Acid Ethyl Ester ◽  
X Ray ◽  
X Ray Crystallography

Synthese und Struktur von 1.2.3-Thiadiazol- und 1.2.3-Selenadiazol-Pentaearbonyl-Komplexen der Elemente Chrom und Wolfram / Synthesis and Structure of 1,2,3-Thiadiazol- and 1,2,3-Selenadiazol-Pentacarbonyl-Complexes of the Elements Chromium and Tungsten

1981 ◽  
Vol 36 (2) ◽  
pp. 172-179 ◽  
Author(s):  
Volker Bätzel ◽  
Roland Boese
Keyword(s):  
Carboxylic Acid ◽  
Ir Spectra ◽  
Ethyl Ester ◽  
Acid Ethyl Ester ◽  
X Ray ◽  
And Tungsten ◽  
Metal Fragment

Abstract From the reactions of (THF)M(CO)5 (M = Cr, W) with 4-phenyl-1,2,3-thiadiazol, 4-methyl-5-carboxylic acid-1,2,3-thiadiazol, 4-methyl-5-carboxylic acid ethyl ester-1,2,3-thiadiazol and 4-methyl-1,2,3-selenadiazol, pentacarbonyl-complexes are obtained as air stable compounds. IR spectra of products of similar reactions with M = Mo provide some evidence of the formation of analogous complexes. The thiadiazol complexes are also accessible directly, by photochemical displacement of carbonmonoxid in THF from the parent carbonyl. The X-ray structures of pentacarbonyl-(4-phenyl-1,2,3-thiadiazol)-tungsten and pentacarbonyl-(4-methyl-1,2,3-selenadiazol)-chromium show the coordina-tion of the ligand to the pentacarbonyl-metal-fragment via the nitrogen in position 2.

scholarly journals Synthesis, Spectroscopy and X-Ray Crystal Structure of 9-Methyl-3-Thiophen-2-Yl-Thieno [3, 2-e] [1, 2, 4] Triazolo [4, 3-c] Pyrimidine-8-Carboxylic Acid Ethyl Ester

2011 ◽  
Vol 02 (03) ◽  
pp. 371-375 ◽  
Author(s):  
Nikhath Fathima ◽  
Mohamed Ziaulla ◽  
Afshan Banu ◽  
Shridhar Ishwar Panchamukhi ◽  
Imtiyaz Ahmed Khazi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Carboxylic Acid ◽  
Ethyl Ester ◽  
Acid Ethyl Ester ◽  
X Ray

X-ray powder diffraction data for 1-(4-methoxyphenyl)-7-oxo-6-[4-(2-oxopiperidin-1-yl)phenyl]-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid ethyl ester, C27H28N4O5

2017 ◽  
Vol 32 (3) ◽  
pp. 206-209
Author(s):  
Qing Wang ◽  
Zi Li Suo ◽  
Yong Kui Zhang ◽  
Quan Hou ◽  
Hui Li
Keyword(s):  
Carboxylic Acid ◽  
Cell Volume ◽  
Ethyl Ester ◽  
Powder Diffraction ◽  
Diffraction Data ◽  
Unit Cell Volume ◽  
Acid Ethyl Ester ◽  
Powder Diffraction Data ◽  
X Ray ◽  
Important Intermediate

1-(4-methoxyphenyl)-7-oxo-6-[4-(2-oxopiperidin-1-yl)phenyl]-4,5,6,7- tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid ethyl ester is an important intermediate in the synthesis of the anticoagulant, apixaban. X-ray powder diffraction data for this compound are reported [a = 14.101(4) Å, b = 10.105(6) Å, c = 9.532(7) Å, α = 72.774(1)°, β = 97.356(3)°, γ = 108.237(3)°, unit-cell volume V = 1231.45 Å3, Z = 2, and space group P-1]. No detectable impurities were observed.

Enzymatic resolution of (±)-5-phenyl-4,5-dihydroisoxazole-3-carboxylic acid ethyl ester and its transformations into polyfunctionalised amino acids and dipeptides

2009 ◽  
Vol 20 (16) ◽  
pp. 1940-1947 ◽  
Author(s):  
Giuseppe Cremonesi ◽  
Piero Dalla Croce ◽  
Alessandra Forni ◽  
Maddalena Gallanti ◽  
Raffaella Gandolfi ◽  
...  
Keyword(s):  
Amino Acids ◽  
Carboxylic Acid ◽  
Ethyl Ester ◽  
Acid Ethyl Ester ◽  
Enzymatic Resolution
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