| |
 |
|
Class Information
Number: 204/157.69
Name: Chemistry: electrical and wave energy > Processes and products > Processes of treating materials by wave energy > Process or preparing desired organic product containing at least one atom other than carbon and hydrogen > Heterocyclic product produced
Description: Subject matter wherein the product of the wave energy process is an organic compound wherein one or more carbon atoms are covalently bonded in a ring system with at least one hetero atom of oxygen, sulfur, nitrogen, selenium or tellurium and there are no other different atoms in the ring.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7556750 |
Photochromic materials with reactive substituents |
Jul. 7, 2009 |
| 7122642 |
Method for producing crystal polymorphs and crystal polymorphs produced thereby |
Oct. 17, 2006 |
| 7038068 |
Method for liquid/liquid extraction of molecular weight fractions of perfluorinated polyethers |
May. 2, 2006 |
| 7014796 |
Nonlinear optical compounds and methods for their preparation |
Mar. 21, 2006 |
| 6863782 |
Method of preparing di(ketene acetals) |
Mar. 8, 2005 |
| 6759521 |
Polarization switching to control crystal form |
Jul. 6, 2004 |
| 6551467 |
Microwave facilitated allyllic substitution |
Apr. 22, 2003 |
| 6506285 |
Syntheses of 5,5'-diformyl-2-2'difuran and derivatives thereof |
Jan. 14, 2003 |
| 6444098 |
Process for the preparation of tocol acylates and tocopherol acylates |
Sep. 3, 2002 |
| 6426406 |
Method for using laser light to control crystal form |
Jul. 30, 2002 |
| 6384239 |
Method for producing monohalogenated 2-oxo-1,3-dioxolanes |
May. 7, 2002 |
| 6180805 |
Photochemical process for the production of previtamin D3 |
Jan. 30, 2001 |
| 6136157 |
Method for organic reactions |
Oct. 24, 2000 |
| 5854370 |
Epoxy resin stilbenes and process for producing the same by photoisomerization |
Dec. 29, 1998 |
| 5705596 |
Epoxy resin and process for producing the same |
Jan. 6, 1998 |
| 5484932 |
Halogenation processes in advantageous solvents, and novel bistrifluoromethyl-polyfluoroalkoxybenzenes |
Jan. 16, 1996 |
| 5441612 |
Radiation-enhanced recovery of maltol |
Aug. 15, 1995 |
| 5380935 |
Process for preparing 5-aminolevulinic acid |
Jan. 10, 1995 |
| 5344974 |
Process for the preparation of N-acyl derivatives of 5-aminolevulinic acid, as well as the hydrochloride of the free acid |
Sep. 6, 1994 |
| 5277772 |
Chemical modification of surfaces using heterocyclic azides |
Jan. 11, 1994 |
| 5233054 |
Process for the preparation of halophthalic anhydrides |
Aug. 3, 1993 |
| 5149842 |
Process for preparing peroxide perfluoropolyethers |
Sep. 22, 1992 |
| 5024743 |
Methylendioxyphenathrene and stilben derivatives, process for the preparation thereof, pharmaceutical compositions using these, and therapeutic applications |
Jun. 18, 1991 |
| 5013827 |
Enhanced chemiluminescence from 1,2-dioxetanes through energy transfer to tethered fluorescers |
May. 7, 1991 |
| 4992561 |
Simple conversion of artemisinic acid into artemisinin |
Feb. 12, 1991 |
| 4976834 |
Asymmetric photochemical reaction process |
Dec. 11, 1990 |
| 4956477 |
Synthesis of 1,2-dioxetanes |
Sep. 11, 1990 |
| 4935454 |
Broad spectrum light and heat curable sealant composition and method of using same |
Jun. 19, 1990 |
| 4886735 |
Photopolymerizable recording materials and photoresist layers and lithographic printing plates based thereon |
Dec. 12, 1989 |
| 4874488 |
Photochemical dimerization and functionalization of alkanes, ethers, primary and secondary alcohols, phosphine oxides and silanes |
Oct. 17, 1989 |
| 4849076 |
Continuous oxidation method |
Jul. 18, 1989 |
| 4845166 |
Compositions containing a mixture of a polyhydric alcohol and charge transfer complex of irradiated anhydrides and cyclic ethers, used to cure epoxy resins |
Jul. 4, 1989 |
| 4672132 |
Process for producing an aldehydelactone |
Jun. 9, 1987 |
| 4667050 |
Preparation of pyrethroid precursors |
May. 19, 1987 |
| 4571290 |
Process for the selective oxidation of olefins with photochemical illumination of semiconductor powder suspensions |
Feb. 18, 1986 |
| 4568375 |
2-Substituted 5-amino-3-oxo-4-(substituted-phenyl)-2,3-dihydrofuran herbicides |
Feb. 4, 1986 |
| 4526986 |
Halomethyl, methyl maleic anhydride and synthesis of bromomethyl, methyl maleic anhydride |
Jul. 2, 1985 |
| 4517125 |
Novel vitamin D.sub.3 derivatives and process for producing the same |
May. 14, 1985 |
| 4508605 |
Nonaromatic dianhydride and polyimides from tricyclo[4.2.1.0.sup.2,5 ] nonane-3,4-dimethyl-3,4,7,8-tetracarboxylic acid dianhydride |
Apr. 2, 1985 |
| 4507186 |
Dianhydrides and polyimides |
Mar. 26, 1985 |
| 4490545 |
Cyclic dianhydrides prepared from maleic anhydride |
Dec. 25, 1984 |
| 4481092 |
Photo-initiated epoxidation of allyl chloride |
Nov. 6, 1984 |
| 4466870 |
Organic sonochemistry process |
Aug. 21, 1984 |
| 4428806 |
Process for producing brominated 1,3-dioxolen-2-ones |
Jan. 31, 1984 |
| 4411753 |
Synthesis of 6-t-alkyl-3-pyridazinones |
Oct. 25, 1983 |
| 4398033 |
4-Chloro-4-chloromethyloxetan-2-one and a process for its production |
Aug. 9, 1983 |
| 4383904 |
Photochemical epoxidation |
May. 17, 1983 |
| 4363923 |
4-Halgeno-oxetan-2-ones and process for their production |
Dec. 14, 1982 |
| 4349481 |
Tritiated gibberellin aldehydes |
Sep. 14, 1982 |
| 4345984 |
Novel prostaglandin analogues and process for making same |
Aug. 24, 1982 |
|
|
|
