التفاصيل البيبلوغرافية
| العنوان: |
Synthesis and structure of some substituted 2-amino-4-aryl-7-propargyloxy-4H-chromene-3-carbonitriles. |
| المؤلفون: |
Dinh Thanh, Nguyen, Son Hai, Do, Thi Ngoc Bich, Vu, Thi Thu Hien, Pham, Thi Ky Duyen, Nguyen, Thi Mai, Nguyen, Thi Dung, Tran, Thi Kim Van, Hoàng, Ngoc Toan, Vu, Huy, Nguyen Hung, Thi Thanh Van, Tran, Ngoc Toan, Duong, Hai Dang, Le |
| المصدر: |
Synthetic Communications; 2019, Vol. 49 Issue 1, p102-117, 16p |
| مستخلص: |
A series of 2-amino-7-hydroxy-4H-chromene-3-carbonitriles 4a-l were synthesized through three-component reaction using sodium carbonate as a catalyst. The reaction was carried out in 96% ethanol-water medium (1:20 ratio in volume). Propargyl ether compounds 5a-l of these chromene-3-carbonitriles were successfully synthesized from corresponding hydroxyl chromene derivatives by reaction with propargyl bromide. Two different procedures were applied in this process: the procedure that used potassium carbonate in dried acetone and the procedure that used sodium hydride in dried DMF. The latter gave the ethers 5a-l in higher yields. The single-crystal X-ray structure of propargyl ether 5g has been recorded. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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