| 摘要 |
<p>Azo pyrazolene basic dyes (I). where R = hydrocarbon, carbonamide, cyano X = H hydrocarbon, y = alkylene or arylene, connected to K+ directly or through CH2-CO-NH-CH2 or CH2-NH-CO-CH2. Z = O, S or SO2, A- anion, K+ = where R1, R2 = alkyl or cycloalkyl, or together with N+ form heterocycle R3, R4 = H, alkyl, cycloalkyl, R5, R6, R7 = alkyl, cycloalkyl R1 + R3 or R2 + R4 may with neighbouring N form a heterocycle R5 + R6 or R5 R6 + R7. with neighbouring N form a heterocycle. prep. by coupling an amine with a pyrazolone.</p> |
