Za= CHO; d, Z'= Ph, Z2= COCH,.'a, z'= z2= C0, Me; b, Z'= Zz= C0, Et; C, Z1= ph, of tetrathiafulvalenes and of their precursors. 2 The methods of formation of'ITF derivatives depend markedly on the nature of their substituents. TTF itself is conveniently prepared by coupling of an 1, 3-dithiolium salt using a tertiary amine, 3 and substituted TTF can be ob- tained from the phosphoranes resulting either from the addition of an alkyne to the ...
