| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject new compound useful for the production of a radiation-sensitive composition excellent in sensitivity and resolution. SOLUTION: This compound is expressed by formula I [R<1> , R<2> , R<3> , R<4> , R<5> , R<6> , R<7> and R<8> are each H, OH, a halogen, an alkyl, etc.; X is a single bond or bivalent group expressed by formula II (R<9> and R<10> are each H, an alkyl or aryl); (n) is 3-8], e.g. a phenolic dendrimer compound expressed by formula III. The compound of formula I is obtained by reacting a methylhydroxybenzoate compound with allyl bromide in the presence of K2 CO3 and sodium iodide in an organic solvent, reducing the reaction product with a reducing agent, such as lithium alminum hydride in a solvent, such as tetrahydrofuran, then, reacting the resulting product with carbon tetrabromide in the presence of triphenyphosphine in a solvent, such as tetrahydrofuran, finally, followed by reaction of the above reaction product with a cyclic phenoilc compound in the presence of 18-crown-6-ether and potassium carbonate in a suitable solvent. |
