摘要:
A process for the preparation of enantiomerically homogeneous aminopyrrolidinyl naphthyridine carboxylic acids and quinolone carboxylic acids, and for the preparation of intermediates that are useful in the production of these carboxylic acids. The compounds are useful as anti-bacterials.
摘要:
Secondary or tertiary alkyl phenyl ethers may be induced to undergo thermal rearrangement on alumina, aluminum phosphate, or a silica-modified alumina as catalyst to afford the isomeric ortho-alkylphenol. Such rearrangement generally occurs under milder conditions than does the alkylation of a phenol with an olefin using the same alumina as an alkylating catalyst with high regioselectivity and good control over the extent of alkylation.
摘要:
Alkyl phenyl ethers may be induced to undergo thermal rearrangement on an alumina catalyst to afford the isomeric ortho-alkylphenol. Such rearrangement generally occurs under milder conditions than does the alkylation of a phenol with an olefin using the same alumina as an alkylating catalyst. Yields frequently are high with good selectivity.