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CAS No. : | 22819-05-2 | MDL No. : | MFCD03085910 |
Formula : | C4H8N4 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | N/A |
M.W : | 112.13 | Pubchem ID : | - |
Synonyms : |
|
TPSA :Topological Polar Surface Area | - | H-Bond Acceptor Count : | - |
XLogP3 : | - | H-Bond Donor Count : | - |
SP3 : | - | Rotatable Bond Count : | - |
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501 | UN#: | |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | |
GHS Pictogram: |
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Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In acetic acid; | EXAMPLE 7 2-Ethyl-7-(3-pyridyl)[1,2,4]triazolo[1,5-a]pyrimidine A mixture of 1.12 g of 3-amino-5-ethyl-1,2,4-triazole and 1.76 g of 3-dimethylamino-1-(3-pyridyl)-2-propene-1-one in 25 ml of glacial acetic acid was refluxed for six hours and the procedure of Example 1 was continued to give 1.51 g of the desired product as colorless needles, mp 147-149 C. The following additional Examples for the preparation of 2-ethyl-7-(heteroaryl and substituted heteroaryl)[1,2,4]triazolo[1,5-a]pyrimidines listed in Table II were prepared by the procedure described in Example 7. |
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