欧盟法规
欧盟化妆品法规附录三-限用物质清单REACH注册ECHA物质ECHA物质C&L通报REACH预注册上下游产品
allyl alcohol butyric acid butanoic acid ethyl ester vinyl n-butyrate propane butyric acid norborn-5-en-2-ylmethyl ester butyric acid trimethyleneglycol 📜缩水甘油丁酯置于[hydrido-Tris(3,5-Dimethylpyrazolyl)Borate]Reo3,三苯基膦体系中,用 氘代苯 用作溶剂,化学反应 388.0H,反应生成丁酸烯丙酯
参考文献:Rhenium-Catalyzed Epoxide Deoxygenation: Scope And Limitations
标题:Rhenium-Catalyzed Epoxide Deoxygenation: Scope And Limitations
摘要:在75-105oc的苯溶液中,三(3,5-二甲基吡唑)硼酸氢盐-铼o3(tp'Reo3)高效催化环氧化物向三苯基膦进行氧原子转移.该反应耐受多种官能团,包括酮(与新双键共轭或非共轭),酯,腈,醚,硅醚和酞酰亚胺.相对反应速率随取代模式和电子性质变化;通常,单取代和2,2-二取代的环氧化物反应最快,顺式-2,3-二取代系统比反式更快.吸电子取代基促进反应进行.
Doi:10.1055/s-2003-42076
海关参考信息
- 2901210000-乙烯
2901220000-丙烯
2905121000-正丙醇
2905130000-正丁醇 - 💡 提示:海关信息按照顺序优先匹配,如需确认的海关信息,请参考相关资料。
- 详情请参考:📖 海关编码查询和海关进出口税则
专利信息
专利号:US-6815214-B2
优先权日:2000-12-29
标 题 :Pharmaceutical uses and synthesis of diketopiperazines
发明人:BOYCE JIM P; HOWBERT J JEFFRY; TABONE JOHN C
权利人:CELLTECH R & D INC
摘要:The synthesis of novel diketopiperazines, their use in inhibiting cellular events such as those involving NFK-α, NFK-β and in the treatment of inflammation events, a combinatorial library of diverse diketopiperazines and process for their synthesis as a library and as individual compounds. In particular novel diketopiperazines are disclosed including their synthesis and use in cellular events such as activation of the transcription factor, nuclear factor, TNF-α, TNF-β and also apoptosis.
专利号:US-9242925-B2
优先权日:2011-08-29
标题:Versatile and stereospecific synthesis of γ,δ-unsaturated amino acids by Wittig reaction
发明人:JUGE SYLVAIN; BAYARDON JEROME; REMOND EMMANUELLE; ONDEL-EYMIN MARIE-JOELLE
权利人:JUGE SYLVAIN; BAYARDON JEROME; REMOND EMMANUELLE; ONDEL-EYMIN MARIE-JOELLE; CENTRE NAT RECH SCIENT; UNIV BOURGOGNE
摘要:The γ,δ-unsaturated α-amino acids of general formula (I). Also, a versatile process for the stereospecific synthesis of said compounds of formula (I), involving a Wittig reaction. Further, intermediate products of general formulae (II) and (III), as shown below, which are involved in the synthesis of compounds (I). n n n n n n n n n n n n Compounds of general formula (I) may be useful as therapeutic substances, or as reagents or intermediates for fine chemistry.
专利号:US-7351781-B2
优先权日:2001-04-24
标题 :Synthesis of vinyl polymers by controlled radical polymerization
发明人:WHITE DANIELA; O'DWYER JAMES B
权利人:PPG IND OHIO INC
摘要:A controlled free radical polymerization process, which includes the steps of: adding a monofunctional iniferter compound to an oxygen-free solvent; heating the solution to a temperature sufficient to allow the iniferter compound to form two carbon centered radical residues; adding a first monomer composition comprising one or more monomers to the solution containing the radical containing residues; polymerizing the first monomer composition to form a quasi-living polymer; and optionally polymerizing a second monomer composition comprising one or more monomers, which are different than the first monomer composition. The resulting non-random copolymer having the general formula:n nφ-[-A p -B s -] t -φn nwhere A and B are different compositions of ethylenically unsaturated monomers; p is an integer from 1 to 1,000; s is an integer from 0 to 1,000; t is an integer from 1 to 100; and φ is a residue from the iniferter.
专利号:US-6153751-A
优先权日:1990-02-01
标题:Method and compositions for the synthesis of BCH-189 and related compounds
发明人:LIOTTA DENNIS C; CHOI WOO-BAEG
权利人:UNIV EMORY
摘要:The present invention relates to a method of preparing BCH-189 and various analogs of BCH-189 from inexpensive precursors with the option of introducing functionality as needed. This synthetic route allows the stereoselective preparation of the biologically active isomer of these compounds, β-BCH-189 and related compounds. Furthermore, the steochemistry at the nucleoside 4' position can be controlled to produce enantiomerically-enriched β-BCH-189 and its analogs.
专利号:US-10081591-B2
优先权日:2016-03-17
标 题 :Isomer selective synthesis of methanofullerenes
发明人:JACKSON EDWARD A; RICHTER HENNING
权利人:NANO C INC
摘要:[6,6]-Phenyl C 71 butyric acid derivatives (C 70 -PCBR 3 ) having a selectivity of greater than 95 wt % of the α-isomer are provided by reacting fullerene C 70 with a dialkyl sulfonium tetrafluoroborate having the formula:
专利号:US-9527797-B1
优先权日:2016-03-17
标 题:Isomer-selective synthesis of methanofullerenes
发明人:JACKSON EDWARD A; RICHTER HENNING
权利人:NANO-C INC
摘要:[6,6]-Phenyl C 71 butyric acid derivatives (C 70 -PCBR 3 ) having a selectivity of greater than 95 wt % of the α-isomer are provided by reacting fullerene C 70 with a dialkyl sulfonium tetrafluoroborate having the formula: