CAS: 12626-49-2; Dowfax 2A1

专利信息

专利号:US-7601774-B2
优先权日:2004-07-19
标题:Synthesis of aromatic polyhalogenated halomethyl compounds
发明人：KORNBERG NURIT; ADDA MICHAEL; PELED MICHAEL
权利人:BROMINE COMPOUNDS LTD
摘要:The present invention discloses a process for the preparation of highly pure pentabromobenzyl bromide, PBB-Br, wherein the benzylic bromination reaction is carried out in a suitable organic solvent in the presence of water and wherein the reaction temperature is such that it is sufficient to activate the initiator but not high enough to consume a substantial amount thereof.

专利号:US-2007205403-A1
优先权日:2004-07-19
标 题:Synthesis of Aromatic Polyhalogenated Halomethyl Compounds

专利号:US-6384264-B1
优先权日:1997-12-24
标题:Photoactive materials applicable to imaging systems
发明人：DOS SANTOS CRISTIANO MARIA DE; DAVIES JOHN KYNASTON; DOWD SHARON; JOHNSTONE ROBERT ALEXANDER WAL; PRATT MICHAEL JOHN; WADE JOHN ROBERT
权利人:AGFA GEVAERT
摘要:Organic photoprecursors of amines are provided for use in photosensitive imaging systems, finding particular application in the preparation of lithographic printing plates. Said photoprecursors generate free amines on exposure to long wavelength UV or visible radiation, have high solubility in organic solvents, and include photolabile 2-nitrobenzyl functional groups. Methods for the synthesis of the photoprecursors are described, and the use of the said photoprecursors for the production of printing plates using both positive working and negative working techniques are discussed.

专利号:CA-2640585-A1
优先权日:2003-02-05
标题 :Synthesis of 2-butyl-3-(2'-(1-trityl-1h-tetrazol-5-yl)biphenyl-4-yl)-1,3-diazaspirol{4,4}-non-ene-4-one

专利号:IL-180424-A
优先权日:2004-07-19
标 题:Synthesis of aromatic polyhalogenated halomethyl compounds

专利号:US-4828813-A
优先权日:1981-12-30
标题:Siliceous metal-containing crystalline compositions
发明人：MOOREHEAD ERIC L
权利人:UNION OIL CO
摘要:A novel siliceous crystalline composition of matter further comprising one or more metals is prepared by admixing a basic silica salt and a dissolved metal salt in the presence of a quaternary ammonium ion and subsequently heating under pressurized conditions. This novel composition of matter is useful as a catalyst for oxidation, alkylation, disproportionation, synthesis gas conversion, hydrocracking, and hydrodewaxing.