CAS: 289-80-5; Pyridazine

相似化合物

6164-80-3 53896-49-4 4603-59-2

上下游产品

CAS号110-91-8 吗啉 | CAS号109-77-3 丙二腈 | CAS号90510-96-6 4,4-diethoxy-3-... | CAS号290-42-6 tetrazine | CAS号141-30-0 3,6-二氯哒嗪 | CAS号573-57-9 1,4-环氧-1,4-二氢萘 | CAS号1671-87-0 3,6-二(2-吡啶基)-1,... | CAS号63904-57-4 (1R,2S,3R,4S)-b... | CAS号114068-57-4 3,4-diazatricyc... | CAS号90230-87-8 6-benzyl-1-oxid... | CAS号39123-39-2 哒嗪-4-甲酸乙酯 | CAS号98832-77-0 triethyl 3,4,5-... | CAS号21050-73-7 diethyl pyridaz... | CAS号53896-49-4 哒嗪-3-甲腈 | CAS号50681-25-9 哒嗪-4-羧酸 | CAS号20744-39-2 4-氨基哒嗪 | CAS号1120-88-3 4-甲基哒嗪 | CAS号1632-76-4 3-甲基哒嗪 | CAS号68206-10-0 3,4-二甲基哒嗪

4,4-Diethoxy-3-Hydroxybutanal置于硫酸肼体系中,用 甲醇,水 用作溶剂,化学反应 18.0H,以80%的收率获得哒嗪
参考文献:New Routes To γ-Ketoesters,β-Hydroxy-δ-Ketoesters,α,β-Unsaturated γ-Ketoaldehydes,And Acetals. Synthesis Of Cyclopentenones
标题:New Routes To γ-Ketoesters,β-Hydroxy-δ-Ketoesters,α,β-Unsaturated γ-Ketoaldehydes,And Acetals. Synthesis Of Cyclopentenones
摘要:
Doi:10.1016/s0040-4020(01)91249-9

专利信息

专利号:US-9126995-B2
优先权日:2011-11-08
标题:Method for catalytic asymmetric synthesis of optically active isoxazoline compound and optically active isoxazoline compound
发明人：TOYAMA KEN-ICHI; MORIYAMA YUJI; MATOBA KAZUTAKA; YAOSAKA MANABU; IKEDA EITATSU
权利人:NISSAN CHEMICAL IND LTD
摘要:There is provided a method for catalytic asymmetric synthesis of optically active isoxazoline compound and an optically active isoxazoline compound. A method for catalytic asymmetric synthesis of optically active isoxazoline compound of a formula (6) including reacting an α,β-unsaturated carbonyl compound of a formula (1) and a hydroxylamine in a solvent in the presence of a base by adding a chiral phase transfer catalyst. An optically active isoxazoline compound of a formula (13) that can be synthesized by the method.

专利号:US-8309740-B2
优先权日:2008-05-13
标题 :One-pot synthesis of fluorinated ionic liquids
发明人：LEE HYUN JOO; SUH DONG JIN; AHN BYOUNG SUNG; KIM HONG GON; KIM CHANG SOO; KIM HOON SIK
权利人:LEE HYUN JOO; SUH DONG JIN; AHN BYOUNG SUNG; KIM HONG GON; KIM CHANG SOO; KIM HOON SIK; KOREA INST SCI & TECH
摘要:The present invention relates to a method for one-pot synthesis of ionic liquid with fluoroalkyl group, more particularly to a method for one-pot synthesis of ionic liquid with fluoroalkyl group represented by the following Chemical Formula 1 by adding and reacting a nitrogen-containing compound, a Brønsted acid of the formula YH and a fluoroolefin compound of the formula CFR 1 â•?CR 2 R 3 in a single reactor: n n n n n n n n n n wherein n nrepresents a nitrogen-containing compound; Y − represents an anion of the Brønsted acid; and R 1 , R 2 and R 3 , which may be same or different, represent hydrogen, fluorine, C 1 -C 10 alkyl or C 1 -C 10 fluoroalkyl having from 1 to 23 fluorine atoms.

专利号:US-5569762-A
优先权日:1994-01-14
标题:Asymmetric synthesis of intermediates for retroviral protease inhibitor compounds
发明人：WISSNER ALLAN; TROVA MICHAEL P
权利人:AMERICAN CYANAMID CO
摘要:The disclosure describes an improved process for producing optically active compounds of Formula II or III, which compounds are useful as intermediates for preparing compounds active as inhibitors of retroviral protease enzymes: ##STR1## wherein R 1 , R 50 and Z are described in the specification. The improved process includes either synthesis of diastereomeric iodolactones which are separated prior to conversion to compounds of Formula II or III or synthesis of an epoxide which is converted directly to compounds of Formula II and III.

专利号:WO-2024201393-A1
优先权日:2023-03-29
标 题:Methods for the synthesis of nucleoside analogues and nucleosides analogues derived therefrom
发明人：BRITTON ROBERT; Muir Garrett; ANKETELL MATTHEW JAMES; HUXLEY COHAN; BAIKABI SUPING
权利人:UNIV FRASER SIMON
摘要:The present invention relates to methods for the synthesis of nucleoside analogues. More specifically, the present invention relates to methods for the synthesis of C4' substituted nucleoside analogues via the reaction of a soft nucleophile with a halohydrin ketone.

专利号:US-2006128930-A1
优先权日:2004-12-03
标题 :Synthesis of sterically hindered phenol based macromolecular antioxidants
发明人：DHAWAN ASHISH; CHOLLI ASHOK L
权利人:DHAWAN ASHISH; CHOLLI ASHOK L
摘要:Disclosed is a method for the synthesis of sterically hindered polymeric antioxidants based on phenol type antioxidant monomers. The method includes polymerizing and alkylating a phenol containing monomer represented by the following structural formula: n n nto produce a sterically hindered polymeric macromolecular antioxidant. X, R 10 and q are as defined herein. The disclosed method is a simple, direct and economical process for the synthesis of sterically hindered polymeric macromolecular antioxidants.

专利号:US-7678877-B2
优先权日:2004-12-03
标题 :Process for the synthesis of polyalkylphenol antioxidants
发明人：YANG SUIZHOU; CHOLLI ASHOK L
权利人:POLNOX CORP
摘要:Disclosed is a method for the synthesis of sterically hindered polymeric antioxidants based on phenol type antioxidant monomers. The method includes partially etherifying, polymerizing and thermally rearranging a phenol containing monomer represented by the following structural formula: n nto produce a sterically hindered polymeric macromolecular antioxidant. X, R 10 and q are as defined herein. The disclosed method is a simple, direct and economical process for the synthesis of sterically hindered polymeric macromolecular antioxidants.