Stable, sterically-protected, bonded phase silicas prepared from
申请人:ES Industries
公开号:US05576453A1
公开(公告)日:1996-11-19
Compositions of Formula (I): ##STR1## wherein R is a group selected in accordance with an intended application; R.sub.1 and R.sub.2 are protecting groups; and P is a substrate are provided. Methods of producing these compositions are also provided.
PREPARATION OF SILICON PHTHALOCYANINES AND GERMANIUM PHTHALOCYANINES AND RELATED SUBSTANCES
申请人:Gessner Thomas
公开号:US20100113767A1
公开(公告)日:2010-05-06
A process for preparing compounds of the general formula (I) by reacting the compound of the general formula (II) where L, L′ are the same or different and are each independently Cl or OH in the presence of a. chlorine compounds Cl-M
2
R
1
R
2
R
3
, Cl-M
3
R
4
R
5
R
6
, with the proviso that L and L′ are not both simultaneously OH, or b. hydroxyl compounds HO-M
2
R
1
R
2
R
3
, HO-M
3
R
4
R
5
R
6
. The use of compounds of the general formula (I) as markers for liquids and a process for detecting markers in liquids.