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Class Information
Number: 552/115
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Acyclic carbon bonded directly to three benzene rings or to two benzene rings and a cyclohexadienyl ring, which acyclic carbon may not be bonded to a fourth carbon (e.g., triphenylmethane dyestuffs, etc.) > Chalcogen bonded directly to one of the rings (e.g., fuchsone, etc.)
Description: Compounds wherein one of the rings is bonded directly to chalcogen (i.e., oxygen, sulfur, selenium or tellurium).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7304189 |
Methods for preparing 1,1,1-tris(4-hydroxyphenyl)alkanes |
Dec. 4, 2007 |
| 6603029 |
Partially protected novel trisphenols and process for production thereof |
Aug. 5, 2003 |
| 6239220 |
Recovery of triarylmethyl halide protecting groups cleaved during oligonucleotide synthesis |
May. 29, 2001 |
| 6124484 |
Recovery of triarylmethyl halide protecting groups cleaved during oligonucleotide synthesis |
Sep. 26, 2000 |
| 5969167 |
Method for making tris(hydroxyphenyl) compounds using ion exchange resins |
Oct. 19, 1999 |
| 5922890 |
Organic compounds |
Jul. 13, 1999 |
| 5756781 |
Method for making tris(hydroxyphenyl) compounds using ion exchange |
May. 26, 1998 |
| 5413997 |
Triphenylmethane derivatives |
May. 9, 1995 |
| 5241082 |
Aromatic trisanhydrides |
Aug. 31, 1993 |
| 5151531 |
Dihydric phenols |
Sep. 29, 1992 |
| 5011955 |
Substituted 1,1,1-triaryl-2,2,2-trifluoroethanes and processes for their synthesis |
Apr. 30, 1991 |
| 4885116 |
Substituted 1,1,1-triaryl-2,2,2-trifluoroethanes and processes for their synthesis |
Dec. 5, 1989 |
| 4740330 |
Method for allylating aromatic hydroxyl-containing compounds |
Apr. 26, 1988 |
| 4695408 |
Preparation of trisphenol methanes |
Sep. 22, 1987 |
| 4514334 |
Polyphenolic compounds |
Apr. 30, 1985 |
| RE31467 |
Triaryl or diarylpyridyl methanes |
Dec. 20, 1983 |
| 4283538 |
Novel triarylmethane compounds |
Aug. 11, 1981 |
| 4282160 |
Novel triarylmethane compounds |
Aug. 4, 1981 |
| 4277407 |
Novel triarylmethane compounds |
Jul. 7, 1981 |
| 4210765 |
Process for obtaining halogenated diphenols |
Jul. 1, 1980 |
| 4152341 |
Triaryl or diarylpyridyl methanes |
May. 1, 1979 |
| 4113879 |
Pharmaceutical compositions and method of use |
Sep. 12, 1978 |
| 3957832 |
Epoxy resins prepared from polyhydroxy-containing compounds |
May. 18, 1976 |
| 3944575 |
Aryl ether compounds and their synthesis |
Mar. 16, 1976 |
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