Crystal structure of 1:1 Complexes between urea and two crown ether derivatives of phthalic acid, 2,3,5,6,8,9,11,12,14,15-decahydrobenzo[1,4,7,10,13,16]hexaoxacyclo-octadecin-18,19-dicarboxylic acid (i) and 2,3,5,6,8,9,11,12-octahydro-benzo[1,4,7,10,13]pentaoxacyclopentadecin-15,16-dicarboxylic acid (II)

1989 ◽  
Vol 26 (4) ◽  
pp. 981-990 ◽  
Author(s):  
Franco Benetollo ◽  
Gabriella Bombieri ◽  
Mary R. Truter
Keyword(s):  
Crystal Structure ◽  
Crown Ether ◽  
Dicarboxylic Acid ◽  
Phthalic Acid ◽  
Derivatives Of

Crystal structures of 1:1 complexes between urea and two crown ether derivatives of phthalic acid

1987 ◽  
Vol 5 (2) ◽  
pp. 165-168 ◽  
Author(s):  
Franco Benetollo ◽  
Gabriella Bombieri ◽  
Mary R. Truter
Keyword(s):  
Crown Ether ◽  
Crystal Structures ◽  
Phthalic Acid ◽  
Derivatives Of

Ribosylierung mono- und bicyclischer Dicarbonsäureimide / Ribosylation of Mono- and Bicyclic Dicarboxylic Acid Imides

1988 ◽  
Vol 43 (5-6) ◽  
pp. 397-402
Author(s):  
Kurt-Peter Raezke ◽  
Hermann Frister ◽  
Eckhard Schlimme
Keyword(s):  
Nmr Spectroscopy ◽  
Dicarboxylic Acid ◽  
Phthalic Acid ◽  
Cyclic Imides ◽  
Tin Tetrachloride

The N-trimethylsilyl compounds of the cyclic imides derived from cis-cyclohexan-1,2-dicarboxylic acid, cis-4-cyclohexen-1,2-dicarboxylic acid and phthalic acid were prepared. Reaction of the N-silylated cyclic imides 2 and 10 with 1,2,3,5-tetra-O-acetyl-β-ᴅ-ribofuranose in the presence of tin tetrachloride yielded the appropriate unusual ribonucleosides 4 and 12 whereas 14 led only to traces of the ribosylated derivative. The silylation and ribosylation sites in the aforementioned bicyclic imides were proved by 1H, 13C, and 29Si NMR spectroscopy and compared with data found for the monocyclic imides N-succinimide and N-maleinimide.

Monoorganomercury and diorganothallium derivatives of 2-thiouracil and 2-S-methylthiouracil; crystal structure of methylmercury(II)-2-S-methylthiouracilate

1990 ◽  
Vol 384 (1-2) ◽  
pp. 19-32 ◽  
Author(s):  
M.S. García Tasende ◽  
M.I. Suárez Gimeno ◽  
A. Sánchez ◽  
J.S. Casas ◽  
J. Sordo ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Derivatives Of
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