ISSN:
0009-2940
Keywords:
Imines
;
Iminium salts
;
3-Trifloxypropeniminium salts
;
Propyniminium salts
;
Cyclization reactions
;
Azacyclobutadiene
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The imines 5 and 11 react with 3-trifloxypropeniminium triflates 1a-d to afford the heterocyclic iminium salts 8, 9, 13, 15, and 17, respectively, or the propeniminium salt 21. Propyniminium triflates 22, 24 react with imines by initial conjugated addition, followed by a reaction sequence analogous to the one observed for the reactions of 1a-d with imines. Thus, salt 22 and aldimine 5b yield the propeniminium salt 21, while 24 reacts with tri-tert-butylazete 25 to afford the semicyclic vinamidinium salt 28. A crystal structure analysis of 28 is performed.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19941270719
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