The present invention relates to the compounds of general formula (I)
wherein R, R1, R2 are as defined in claim 1.
Compounds of formula (I) are particularly useful for preparing 3,3-dimethyl-5-formyl-2,3-dihydrobenzoxepines derivatives.
本发明涉及一般式(I)的化合物,其中R,R1,R2如权利要求1中所定义。公式(I)的化合物特别适用于制备3,3-二甲基-5-甲酰基-2,3-二氢苯并氧化物衍
生物。