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US4421928A 4-Methyl-3-formyl-pentanoic acid esters 失效
4-甲基-3-甲酰基 - 戊酸酯

4-Methyl-3-formyl-pentanoic acid esters
摘要:
Novel 4-methyl-3-formyl-pentanoic acid derivative of the formula ##STR1## wherein Hal is a halogen, R.sub.1 is alkyl of 1 to 12 carbon atoms and A and B are .dbd.0 or A is halogen and B is --OR.sub.2 and R.sub.2 is alkyl of 1 to 12 carbon atoms, their preparation and their use as intermediates.
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