[EN] PHENYLNAPHTHYLIMIDAZOLES FOR USE ON COPPER SURFACES DURING SOLDERING<br/>[FR] PHÉNYLNAPHTHYLIMIDAZOLES EN VUE D'UNE UTILISATION SUR LES SURFACES EN CUIVRE AU COURS D'UN BRASAGE
申请人:SHIKOKU CHEM
公开号:WO2005121101A1
公开(公告)日:2005-12-22
A surface treating agent containing a novel phenylnaphthylimidazole compound represented by the following formula is brought into contact with the surface of copper or a copper alloy. In the formula, when A1 is a phenyl group, then A2 represents a 1-naphthyl group or a 2-naphthyl group, and when A1 is a 1-naphthyl group or a 2-naphthyl group, then A2 represents a phenyl group; and R represents a hydrogen atom or a methyl group.
The present invention relates to compounds of formula I:
1
wherein one of R
1
and R
4
is selected from the group consisting of H, and optionally substituted C
1-6
alkyl, C
3-7
cycloalkyl, C
3-7
cycloalkyl-C
1-4
alkyl, and phenyl-C
1-4
alkyl; and the other of R
1
and R
4
is an optionally substituted C
9-14
aryl group; R
2
and R
3
are either:
(i) independently selected from H, R, R′, SO
2
R, C(═O)R, (CH
2
)
n
NR
5
R
6
, where n is from 1 to 4 and R
5
and R
6
are independently selected from H and R, where R is optionally substituted C
1-4
alkyl, and R′ is optionally substituted phenyl-C
1-4
alkyl, or
(ii) together with the nitrogen atom to which they are attached, form an optionally substituted C
5-7
heterocyclic group; and their use as pharmaceuticals, in particular for treating conditions alleviated by the antagonism of a 5-HT
2B
receptor.
alpha-Acetoxylation of ketones catalyzed by iodobenzene using 30% aqueous hydrogen peroxide and acetic anhydride as the oxidant is an effective and economical method for the preparation of alpha-acetoxy ketones. The reaction gave the products in good yields without the addition of acetic acid and water.
Phenylnaphthylimidazole Compound and Usage of the Same
申请人:Hirao Hirohiko
公开号:US20070246134A1
公开(公告)日:2007-10-25
A surface treating agent containing a novel phenylnaphthylimidazole compound represented by the following formula is brought into contact with the surface of copper or a copper alloy.
In the formula, when A
1
is a phenyl group, then A
2
represents a 1-naphthyl group or a 2-naphthyl group, and when A
1
is a 1-naphthyl group or a 2-naphthyl group, then A
2
represents a phenyl group; and R represents a hydrogen atom or a methyl group.