An X-ray structural study of organic ligands of the complexone type. IV. Crystal and molecular structure of rac-2,3-dihydroxybutane-1,4-diamine-N,N,N?,N?-tetra-acetic acid

1983 ◽  
Vol 24 (3) ◽  
pp. 400-407
Author(s):  
A. E. Obodovskaya ◽  
L. M. Shkol'nikova ◽  
L. O. Atovmyan ◽  
I. A. Seliverstova ◽  
V. G. Yashunskii ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Acetic Acid ◽  
Structural Study ◽  
Crystal And Molecular Structure ◽  
Organic Ligands ◽  
X Ray ◽  
Type Iv

X-ray structural study of organic ligands of the Complexone type. XVII. Crystal and molecular structure of nitrilo-di(?-propionamide)monoacetic acid

1988 ◽  
Vol 29 (1) ◽  
pp. 99-104
Author(s):  
L. M. Shkol'nikova ◽  
K. D. Suyarov ◽  
A. L. Poznyak ◽  
N. M. Dyatlova ◽  
S. S. Makarevich
Keyword(s):  
Molecular Structure ◽  
Structural Study ◽  
Crystal And Molecular Structure ◽  
Organic Ligands ◽  
X Ray

X-ray structural study of organic ligands of the complexone type. III. Crystal and molecular structure of phosphonomethylglycine and iminodiacetic-monomethylphosphonic acid

1983 ◽  
Vol 23 (5) ◽  
pp. 737-746 ◽  
Author(s):  
L. M. Shkol'nikova ◽  
M. A. Porai-Koshits ◽  
N. M. Dyatlova ◽  
G. F. Yaroshenko ◽  
M. V. Rudomino ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Structural Study ◽  
Crystal And Molecular Structure ◽  
Organic Ligands ◽  
X Ray ◽  
Type Iii

The Meisenheimer rearrangement in heterocyclic synthesis. II. Synthesis and X-ray crystal structure of a tetrahydro-1H-2,3-benzoxazocine and preparation of a hexahydro-2,3-benzoxazonine

1980 ◽  
Vol 33 (6) ◽  
pp. 1323 ◽  
Author(s):  
JB Bremner ◽  
EJ Browne ◽  
PE Davies ◽  
CLWAH Raston
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Acetic Acid ◽  
Crystal And Molecular Structure ◽  
Phosphorus Oxychloride ◽  
Crystallographic Analysis ◽  
Heterocyclic Synthesis ◽  
Reaction Conditions ◽  
X Ray ◽  
Heterocyclic Derivatives

The heterocyclic derivatives, 8,9-dimethoxy-3-methyl-1-phenyl-3,4,5,6- tetrahydro-1H-2,3-benzoxazocine(3a) and 9,10-dimethoxy-3-methyl-1- phenyl-1,3,4,5,6,7-hexahydro-2,3-benzoxazonine (3b),examples of two new ring systems, have been prepared by Meisenheimer rearrangement of the corresponding 2-benzazepine and 2-benzazocine N-oxide derivatives (2a) and (2b). The Bischler-Napieralski-type cyclization reaction was used in the preparation of the tertiary amine precursors of these N-oxides reaction conditions for the cyclization were critical and phosphorus oxychloride in refluxing butanenitrile was found to give the best yields of the seven- or eight-membered cyclic imine intermediates. Reductive cleavage of the benzoxazocine derivative (3a) with zinc in acetic acid followed by N-methylation gave the expected product, [2-{3- (dimethylamino)propyl}-4,5-di-methoxyphenyl]phenylmethanol (12). The crystal and molecular structure of (3a) has been determined by X-ray crystallographic analysis.

scholarly journals Reaktionen von Derivaten der (Diphenylmethylen-amino)-essigsäure mit Schwefelkohlenstoff und Phenylisothiocyanat sowie Kristall- und Molekülstruktur des 2-(Diphenylmethylen-amino)-2-(1,3-dithian-2-yliden)-essigsäuremethylesters / Reactions of the Derivatives of (Diphenylmethylene-amino) Acetic Acid with Carbon Disulfide and Phenyl Isothiocyanate and Crystal and Molecular Structure of Methyl 2-(Diphenylmethylene-amino)-2-(1,3-dithiane-2-ylidene) Acetate

1993 ◽  
Vol 48 (4) ◽  
pp. 493-504 ◽  
Author(s):  
Wolfgang Dölling ◽  
Klaus Frost ◽  
Frank Heinemann ◽  
Helmut Hartung
Keyword(s):  
Molecular Structure ◽  
Acetic Acid ◽  
Carbon Disulfide ◽  
Structure Determination ◽  
Phase Transfer ◽  
Crystal And Molecular Structure ◽  
Phenyl Isothiocyanate ◽  
X Ray ◽  
Ketene Dithioacetals ◽  
Derivatives Of

Derivatives of (diphenylmethylene-amino) acetic acid 1-3 react in the presence of bases (NaH, t-BuONa) or under phase transfer conditions with carbon disulfide to give the corresponding ketene dithioacetals 4-11 after alkylation. Phenyl isothiocyanate and dicyclohexyl carbodiimide give rise to ketene-S,N- and N,N-acetals. Methyl 2-(diphenylmethyleneamino)-2-(1,3-dithiane-2-ylidene) acetate (7) was characterized by an X-ray structure determination. The compound has a 2-aza-1,3-butadiene fragment containing two well localized double bonds. The C=N-C=C group is significantly non-planar, the relevant torsion angle amounts to -103.5(3)°.

X-ray structural examination of organic ligands of the complexone type. VIII. Crystal and molecular structure of nitrilotripropionic acid

1985 ◽  
Vol 26 (3) ◽  
pp. 447-451 ◽  
Author(s):  
A. V. Gasparyan ◽  
L. M. Shkol'nikova ◽  
N. V. Tsirul'nikova ◽  
N. A. Egorushkina ◽  
L. G. Makarevich ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Crystal And Molecular Structure ◽  
Organic Ligands ◽  
Structural Examination ◽  
X Ray ◽  
Type Viii ◽  
Nitrilotripropionic Acid
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