ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
1,8-Dihydrodithieno[3,4-b:3′,4′-i]-1,4,8,11-tetraaza[14]annulenes (4H,12H-[1,4,8,11]Tetraazacyclotetradecino[2,3-c:9,10-c′]dithiophenes)The title compounds 3a-h, disubstituted in 6,13 positions by alkyl-, 3-hydroxypropyl-, and ethoxycarbonyl groups, are prepared by cyclocondensation of 3,4-diaminothiophene (1) with 2-alkyl-3-ethoxyacroleins (2a-f), 3, 4-dihydro-2H-pyran-5-carbaldehyde (2g), and 2-(ethoxy-carbonyl)-3-hydroxyacrolein (2h), respectively. Metal template cyclocondensations of the starting materials 1 and 2a-h in the presence of nickel(II) acetate affords the nickel(II) chelates (4a-h) of the macrocyclic N4 ligands 3.
Additional Material:
4 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19851180634
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