Use of furan-modified aromatic pinacol derivatives as initiators and furan-modified aromatic pinacol derivatives as such

摘要

Use of furan-modified aromatic pinacol derivatives of the formulae I and II as initiators or radiation-curable systems: <IMAGE> and <IMAGE> wherein R = H or <IMAGE> where R<6> = <IMAGE> or <IMAGE> R<1> = H, alkyl of C1-C4, halogen, -OR<7> (where R<7> = alkyl or an aromatic radical) or phenyl, where the radicals R<1> can be identical or different, R<2> = H, alkyl of C1-C4, halogen, phenyl or -OR<14> (wherein R<14> = H, alkyl or an aromatic radical), where the radicals R<2> can be identical or different, R<3> = H, alkyl, R<8>3 Si- where R<8> = C1-C4-alkyl), benzoyl or furoyl R<4> = H, C1-C4-alkyl, phenyl, furyl, <IMAGE> (where the radicals R<9> are identical or different) and <IMAGE> or <IMAGE> and R<10> is H, C1-C4-alkyl, phenyl, Hal or OR<11> (where R<11> = H or C1-C4-alkyl) or <IMAGE> where R<12> = > CH-OR<11> (wherein R<11> is defined as above), R<13> = H or C1-C4-alkyl, and n1 an n2, which in each case can be identical or different, are integers, R<5> has the same meaning as defined R<4>, and R<4> and R<5> can be identical or different, and novel furan derivatives of the formula II.