- Efficient synthesis of macrocyclic paracyclophanes by ring-closing metathesis dimerization and trimerization reactions
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(Matrix presented) Ring-closing metathesis reactions of para-disubstituted aromatic substrates produced macrocyclic [n.n]-, and [n.n.n]paracyclophanes efficiently through dimerization and trimerization reactions. Sufficiently long alkyl chains allowed direct monocyclizations to yield [n]paracyclophanes. A small library of paracyclophanes were generated by the combinatorial cross-metathesis approach.
- Tae, Jinsung,Yang, Young-Keun
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p. 741 - 744
(2007/10/03)
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- Di(aromatic) compounds and their use in human and veterinary medicine and in cosmetics
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Di(aromatic) compounds corresponding to the following formula: STR1 in which: Ar represents either STR2 n=1 or 2 or: STR3 X represents a divalent radical, Z represents O, S or a divalent radical, and R1, R2, R3, R4 and R5 represent a hydrogen atom or various organic radicals, and the salts of the compounds of formula (I) when R1 is a carboxylic acid function. Use in human and veterinary medicine and in cosmetics.
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- Method for producing diallyl ester of aromatic dicarboxylic acid
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A novel method for producing a diallyl ester of an aromatic dicarboxylic acid, particularly a diallyl ester of an aromatic symmetrical dicarboxylic acid by ester-exchange of a dialkyl ester of the aromatic dicarboxylic acid with allyl alcohol in the co-presence of two kinds of catalysts is disclosed. The obtained diallyl ester of an aromatic dicarboxylic acid according to the present invention is excellent in transmissivity.
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