Topochemical characterization of photostable 4-hydroxyaryl-1,4-dihydropyridines by X-ray crystal structure analysis

The reaction of 1,3-diisopropylimidazolium chloride (3) with benzylpotassium in d5-bromobenzene generates the stable carbene 1,3-diisopropylimidazol-2-ylidene that is trapped by hafnium tetrachloride. A chloride anion is subsequently added to the Hf atom of the resulting intermediate to yield the salt [(1,3-diisopropylimidazol-2-ylidene)HfCl₅−][1,3-diisopropylimidazolium+] 6 that was characterized by an X-ray crystal structure analysis.

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Synthesis and characterization of palladium complex trans-(Me3P)2Pd(C6H4C(H):NPr-iso)(NHPh). X-ray crystal structure analysis of [(Me3P)3Pd(C6H4C(H):NPr-iso)][BF4]

Organometallics ◽

10.1021/om00054a079 ◽

1991 ◽

Vol 10 (8) ◽

pp. 2969-2972 ◽

Cited By ~ 13

Author(s):

Lawrence A. Villanueva ◽

Khalil. Abboud ◽

James M. Boncella

Keyword(s):

Crystal Structure ◽

Structure Analysis ◽

Palladium Complex ◽

Crystal Structure Analysis ◽

Synthesis And Characterization ◽

X Ray

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Synthesis and characterization of [NiL2(OCOCF3)2] [L = 1-(2-aminoethyl) piperidine]: thermochromism and X-ray single crystal structure analysis

Polyhedron ◽

10.1016/s0277-5387(97)00069-7 ◽

1997 ◽

Vol 16 (19) ◽

pp. 3305-3309 ◽

Cited By ~ 4

Author(s):

Debasis Das ◽

Nirmalya Prasun Nayak ◽

Alok K. Mukherjee ◽

Nirmalendu Ray Chaudhuri

Keyword(s):

Crystal Structure ◽

Single Crystal ◽

Structure Analysis ◽

Crystal Structure Analysis ◽

Single Crystal Structure ◽

Synthesis And Characterization ◽

X Ray ◽

Single Crystal Structure Analysis

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Syntheses and characterization of N,N′-dipropyl/diisopropylethane-1,2-diamine complexes of nickel(II) nitrate: Thermal studies and X-ray single crystal structure analysis of cis-nitratobis (N,N′-dipropylethane-1,2-diamine)nickel(II) nitrate

Polyhedron ◽

10.1016/s0277-5387(97)00283-0 ◽

1998 ◽

Vol 17 (8) ◽

pp. 1363-1368 ◽

Cited By ~ 2

Author(s):

Inamur Rahaman Laskar ◽

Debasis Das ◽

Nirmalendu Ray Chaudhuri ◽

Golam Mostafa ◽

Alan J Welch

Keyword(s):

Crystal Structure ◽

Single Crystal ◽

Structure Analysis ◽

Thermal Studies ◽

Crystal Structure Analysis ◽

Single Crystal Structure ◽

X Ray ◽

Single Crystal Structure Analysis

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Crystal structure analysis of 4-R-phenyl-2,6-dimethyl-3,5-N-(dimethylcarbamoyl)-1,4-dihydropyridines [R=2-nitro (1), 4-methoxy (2) and 3,4-dichloro (3)]

Zeitschrift für Kristallographie - Crystalline Materials ◽

10.1524/zkri.1998.213.3.182 ◽

1998 ◽

Vol 213 (3) ◽

Cited By ~ 3

Author(s):

M. Bidya Sagar ◽

K. Ravikumar ◽

Y. S. Sadanandam

Keyword(s):

Crystal Structure ◽

Calcium Channel ◽

Structure Analysis ◽

Crystal Structure Analysis ◽

Calcium Channel Antagonists

AbstractThe crystallographic characterization of the following three calcium channel antagonists is reported here: 2,6-dimethyl-3,5-dicarbamoyl-4-[2-nitro]-1,4-dihydropyridine (

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Preparative-scale HPLC Resolution of Metallacyclic η3-Allyltricarbonyliron Complexes and Determination of the Absolute Configuration by X-Ray Crystal Structure Analysis

Journal of Chemical Research ◽

10.1177/174751989902300930 ◽

1999 ◽

Vol 23 (9) ◽

pp. 578-579

Author(s):

Rainer Schobert ◽

Hermann Pfab ◽

Jutta Böhmer ◽

Frank Hampel ◽

Andreas Werner

Keyword(s):

Crystal Structure ◽

Silica Gel ◽

Structure Analysis ◽

Absolute Configuration ◽

Crystal Structure Analysis ◽

Preparative Scale ◽

X Ray ◽

The Absolute

Racemates of (η3-allyl)tricarbonyliron lactone complex Fe(CO)3{η1:η3-C(O)XCH2CHCMeCH2} 1a (X = O) and (η3-allyl)tricarbonyliron lactam complex 2a (X = NMe) are resolved on a preparative scale by HPLC on cellulose tris(3,5-dimethylphenyl)carbamate/silica gel RP-8 and the absolute configuration of (-)-2a is determined by X-ray crystal structure analysis.

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