摘要:
A synthesis method is provided for the synthesis of quinone compounds of the formula ##STR1## where n is 0-3, Y.sup.1 is alkoxy, Y.sup.2 is alkoxy, chloro, bromo or hydrogen and R' and R" each and independently are hydrogen, alkyl or phenyl. These compounds are useful as reductant precursors in tellurium imaging compositions.
摘要:
Imaging films and film-forming compositions are provided which include a reducible tellurium compound, a reductant precursor, a source of labile hydrogen incorporated in a matrix. The reductant precursors are of the formulae ##STR1## where Y.sub.1 is alkoxy, Y.sub.2 is chloro or alkoxy and Y.sub.3 is hydrogen, chloro or alkoxy.Methods are provided for synthesizing the reductant precursors.
摘要:
Imaging films and film-forming compositions are provided which include a reducible tellurium compound, a reductant precursor, a source of labile hydrogen incorporated in a matrix. The reductant precursors are of the formulae ##STR1## where Y.sub.1 is alkoxy, Y.sub.2 is chloro or alkoxy and Y.sub.3 is hydrogen, chloro or alkoxy.Methods are provided for synthesizing the reductant precursors.
摘要:
Imaging films and film-forming compositions are provided which include a reducible tellurium compound, a reductant precursor, a source of labile hydrogen incorporated in a matrix. The reductant precursors are of the formulae ##STR1## where Y.sub.1 is alkoxy, Y.sub.2 is chloro or alkoxy and Y.sub.3 is hydrogen, chloro or alkoxy.Methods are provided for synthesizing the reductant precursors.