Synthesis of Malononitrile-Condensed Disperse Dyes and Application on Polyester and Nylon Fabrics

Table 2

Yield, colour, molecular weight and melting points of condensed dyes derived from the Diazo component.

Dye	Condensed; Dye	Coupling component	Condensing; component	Weight of; Dye	% yield	Colour of crystals	Mol. wt (g)	Melting point (°C)
D5	D1			1.279	62.9	Coffee-brown	339	315-316
D6	D2			1.390	70	Orange-yellow	331	298-299
D7	D3			1.573	73.48	Reddish-brown	357	154–156
D8	D4			1.665	74.0	Intense-red	357	160-161
Diazo Component

: the coupling component, : the condensing component.