CAS: 122-04-3; 4-Nitrobenzoyl Chloride

上下游产品

pyridine 4-nitro-benzoic acid benzoyl chloride N-amino-(4-nitrophenyl)carboxamide 1-(p-nitrobenzoyl)aziridine -chlorobutyl 4-nitrobenzoate 2-diazo-1-(4-nitrophenyl)ethanone 2-chloro-1-(4-nitrophenyl)ethanone

对硝基苯乙酮置于吡啶,Sulfur Monochloride,氯化亚砜体系中,用 氯苯 用作溶剂,以71%的收率获得4-硝基苯甲酰氯
参考文献:一步一步将甲基酮转化为酰氯
标题:一步一步将甲基酮转化为酰氯
摘要:用单氯化硫和催化量的吡啶在回流的氯苯中处理芳族和杂芳族甲基酮会导致酰基氯的形成.富电子和贫电子的芳基甲基酮都可以用作起始原料.所得的c 1副产物取决于所选择的精确反应条件.
Doi:10.1021/acs.Joc.5B01707

专利信息

专利号:US-11926589-B2
优先权日:2019-07-09
标 题 :Process for the synthesis of non-racemic cyclohexenes
发明人：REISMAN SARAH; ROMBOLA MICHAEL; LADD CAROLYN L; MCLAUGHLIN MARTIN JOHN; ZUEND STEPHAN; GOETZ ROLAND
权利人:BASF CORP; CALIFORNIA INST OF TECHN
摘要:This invention relates to a process for the synthesis of a non-racemic cyclohexene compound of formula (I) by a Diels-Alder reaction of a compound of formula (II) with a compound of formula (III) wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 and Y have the meanings as defined in the description in the presence of a catalyst comprising at least one m-valent metal cation M m+ wherein the metal M is selected from Scandium (Sc), Yttrium (Y), Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Samarium (Sm), Europium (Eu), Gadolinium 15 (Gd), Terbium (Tb), Dysprosium (Dy), Holmium (Ho), Erbium (Er), Thulium (Tm), Ytterbium (Yb), Lutetium (Lu), Gallium (Ga) and Indium (In), and m is an integer of 1, 2 or 3, and a chiral ligand of the formula (IV) wherein R 10a , R 10b , R 10c , R 10d , R 10a′ , R 10b′ , R 10c′ , R 10d′ , Z and Z′ have the meanings as defined in the description.

专利号:US-11136335-B2
优先权日:2016-06-30
标题:Prins reaction and intermediates useful in the synthesis of halichondrin macrolides and analogs thereof
发明人：CHASE CHARLES E; CHOI HYEONG-WOOK; ENDO ATSUSHI; FANG FRANCIS G; KIM DAE-SHIK
权利人:EISAI R&D MAN CO LTD
摘要:The invention provides methods for the synthesis of a halichondrin macrolides or analogs thereof through a cyclization reaction strategy. The strategy of the present invention involves subjecting an intermediate to Prins reaction conditions to afford a macrolide. The invention also provides compounds useful as intermediates in the synthesis of a halichondrin macrolides or analogs thereof and methods for preparing the same.

专利号:US-11220513-B2
优先权日:2015-04-30
标题:Chromium-mediated coupling and application to the synthesis of halichondrins
发明人：KISHI YOSHITO; YAN WUMING; LI JINGWEI; LI ZHANJIE; YAHATA KENZO
权利人:HARVARD COLLEGE
摘要:The present invention provides unified synthesis of the C1-C19 building blocks of halichondrins and analogs thereof using selective coupling of poly-halogenated nucleophiles in chromium-mediated coupling reactions. The present invention also provides a practical and efficient synthesis of C20-C38 building blocks of halichondrins and analogs thereof. Also provided herein are general methods of selective activation and coupling of poly-halogenated analogs with an aldehyde. The provided coupling reactions are selective for halo-enone and halo-acetylenic ketal over vinyl halide and halide attached to a sp hybridized carbon. The provided efficient selective coupling reactions can allow easy access to the C1-C19 building blocks and C20-C38 building blocks of halichondrins and analogs thereof with limited or no purification or separation of the intermediates.

专利号:US-9783549-B2
优先权日:2013-11-04
标题:Macrocyclization reactions and intermediates useful in the synthesis of analogs of halichondrin B
发明人：FANG FRANCIS G; KIM DAE-SHIK; CHOI HYEONG-WOOK; CHASE CHARLES E; LEE JAEMOON
权利人:EISAI R&D MAN CO LTD
摘要:The invention provides methods for the synthesis of eribulin or a pharmaceutically acceptable salt thereof (e.g., eribulin mesylate) through a macrocyclization strategy. The macrocyclization strategy of the present invention involves subjecting a non-macrocyclic intermediate to a carbon-carbon bond-forming reaction (e.g., an olefination reaction (e.g., Homer-Wadsworth-Emmons olefination), Dieckmann reaction, catalytic Ring-Closing Olefin Metathesis, or Nozaki-Hiyama-Kishi reaction) to afford a macrocyclic intermediate. The invention also provides compounds useful as intermediates in the synthesis of eribulin or a pharmaceutically acceptable salt thereof and methods for preparing the same.

专利号:US-7173059-B2
优先权日:2003-05-08
标题:Intermediates useful in the synthesis of HIV-protease inhibitors and methods for preparing the same
发明人：ALBIZATI KIM FRANCIS; BABU SRINIVASAN
权利人:AGOURON PHARMA
摘要:Optically active 3-amino-butene and 1,2-dihydroxy-3-amino-butane intermediate compounds, useful in the synthesis of HIV-protease inhibitors and methods of preparing these intermediate compounds are disclosed.

专利号:WO-9000622-A1
优先权日:1988-07-08
标题 :Oligonucleotide hybridization probes and means for the synthesis of the most preferred probes
发明人：KWIATKOWSKI MAREK; SUND CHRISTIAN; HURSKAINEN PERTTI
权利人:WALLAC OY; PHARMACIA AB
摘要:Oligonucleotide probe labeled at one of its teminal positions with a non-linear branched polymer carrying a plurality of negatively charged groups, preferably phosphodiester groups, and optionally also analytically indicatable groups covalently linked to terminal ends of the branches of said polymer. The preferred indicatable groups are lanthanide chelates. A compound that can be used for the synthesis of the probe is also disclosed. The compound has formula (I), where R1 and R2 are lower alkyl; R3 is lower alkyl (C1-C7), or aryl each of which optionally being provided with electron-withdrawing substituents; and A1, A2 and A3 are hydrogen, A'-O-B, A''-O-B or A'''-O-B, at most one of A1-3 being hydrogen and A', A'' and A''' being a hydrocarbon chain providing a distance of 5-9 atoms between the phosphorous atom and the oxygen directly bound to B, and B being a protecting group. In the preferred compound at least two of A1-3 are identical while the other is hydrogen.