CAS: 1578-63-8; 2-Fluoro-2-Phenylacetic Acid

相似化合物

175845-89-3 1480013-06-6 63818-94-0

上下游产品

CAS号31491-21-1 β,β-双(三甲基甲硅烷氧基)苯乙烯 | CAS号17841-30-4 2-氟-2-苯基乙酸甲酯 | CAS号2802-98-4 diethyl 2-fluor... | CAS号2835-06-5 DL-苯甘氨酸 | CAS号103-82-2 苯乙酸 | CAS号2932-58-3 B-FLUORO-BENZEN... | CAS号10036-43-8 间氟氰苄 | CAS号455-31-2 (二氟甲基)苯 | CAS号10036-43-8 间氟氰苄 | CAS号1126-71-2 N,N-二甲基-2-苯乙胺

📜2-氨基-2-苯基乙酸置于吡啶,Polyhydrogen Fluoride体系中,化学反应生成α-氟苯基乙酸
参考文献:该原位某些氟-取代的烯酮的生成和捕集
标题:该原位某些氟-取代的烯酮的生成和捕集
摘要:经由各自的酰氯的脱卤化氢,分别原位产生氟代烯,二氟代烯,甲基氟代烯,三氟甲基氟代烯和苯基氟代烯.在存在环戊二烯的情况下,除了二氟乙烯烯外,均获得了[2 + 2]加合物.在不存在环戊二烯的情况下,低温19 F NMR指示存在烯酮的潜在前体酰基铵盐和烯醇化物,但无法明确检测到实际的烯酮物种.立体化学结果与目前公认的基于乙烯的环烯加成中立体化学测定的基于机理的机理基本一致.
Doi:10.1016/s0040-4020(01)96116-2

专利信息

专利号:US-10913747-B2
优先权日:2017-07-04
标题 :Efficient process for the preparation of sitagliptin through a very effective preparation of the intermediate 2,4,5-trifluorophenylacetic acid
发明人：DE LUCCHI OTTORINO; PADOVAN PIERLUIGI; BRASOLA ELENA
权利人:FIS FABBRICA ITALIANA SINTETICI SPA; F I S —FABBRICA ITALIANA SINTETICI S P A
摘要:Object of the present invention is an efficient process for the preparation of the active pharmaceutical ingredient Sitagliptine and the 2,4,5-trifluorophenylacetic acid (TFAA) and salt thereof, which is a key intermediate for the synthesis of Sitagliptine.

专利号:US-4215044-A
优先权日:1979-04-23
标题:Synthesis of α-fluorocarbonyl compounds
发明人：MIDDLETON WILLIAM J
权利人:DU PONT
摘要:Process for preparing an organic compound of the formula R 2 R 2 CFC(O)R 3 , which process comprises contacting and reacting in a reaction mixture which includes an inert solvent, at a temperature of -40° C. to -100° C., ROF and ##STR1## R is polyfluoroperhaloalkyl of 1-6 carbon atoms or FOCF 2 ; R 1 is hydrocarbyl of 1-6 carbon atoms; n each R 2 is selected from H, alkyl of 1-17 carbon atoms, cycloalkyl of 3-6 carbon atoms, aryl, heteroaryl and such alkyl, cycloalkyl, aryl and heteroaryl substituted by halogen or alkoxy of 1-6 carbon atoms; n R 3 is selected from H, alkyl and haloalkyl of 1-16 carbon atoms, cycloalkyl of 3-10 carbon atoms, aryl and haloaryl, OSi(R 1 ) 3 , OH, NH 2 , alkoxy of 1-6 carbon atoms, aryloxy, NHR 1 and NR 1 2 wherein R 1 is alkyl of 1-6 carbon atoms, N-arylamino and nitrogen or sulfur heterocyclic of 4-5 carbon atoms; n R 3 and one R 2 taken together is a diradical which with the Câ•?C group is carbocyclic, heterocyclic or haloheterocyclic, and recovering from the reaction mixture the compound of the formula R 2 R 2 CFC()R 3 .

专利号:US-11174266-B2
优先权日:2018-02-13
标 题 :Efficient process for the preparation of sitagliptin
发明人：SHI TERRY; LOU SAM; DE LUCCHI OTTORINO; PADOVAN PIERLUIGI
权利人:F I S —FABBRICA ITALIANA SINTETICI S P A
摘要:Object of the present invention is an efficient process for the preparation of the active pharmaceutical ingredient Sitagliptine and the 2,4,5-trifluorophenylacetic acid (TFAA) and salt thereof, which is a key intermediate for the synthesis of Sitagliptine.

专利号:EP-0946499-B1
优先权日:1996-11-22
标 题 :N-(aryl/heteroaryl/alkylacetyl) amino acid amides, pharmaceutical compositions comprising same, and methods for inhibiting beta-amyloid peptide release and/or its synthesis by use of such compounds
发明人：WU JING; TUNG JAY S; NISSEN JEFFREY S; MABRY THOMAS E; LATIMER LEE H; EID CLARK NORMAN; AUDIA JAMES E
权利人:ELAN PHARM INC; LILLY CO ELI
摘要:Disclosed are compounds which inhibit beta -amyloid peptide release and/or its synthesis, and, accordingly, have utility in treating Alzheimer's disease. Also disclosed are pharmaceutical compositions comprising a compound which inhibits beta -amyloid peptide release and/or its synthesis as well as methods for treating Alzheimer's disease both prophylactically and therapeutically with such pharmaceutical compositions. Said compounds are represented by formula (I), wherein R<1> is selected from the group consisting of: a) alkyl, alkenyl, alkaryl, alkcycloalkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl and heterocyclic; b) a substituted phenyl group of formula (II), wherein R is alkylene of from 1 to 8 carbon atoms, m is an integer equal to 0 or 1, and c) 1- or 2-naphthyl substituted at the 5, 6, 7 and/or 8 positions, R<2> is selected from the group consisting of hydrogen, alkyl of from 1 to 4 carbon atoms, alkylalkoxy of from 1 to 4 carbon atoms, alkylthioalkoxy of from 1 to 4 carbon atoms; and R<3> and R<3'> are independently selected from the group consisting of: (a) hydrogen, (b) alkyl, (c) -(R<7>)n(W)p, wherein R<7> is an alkylene group, W is selected from the group consisting of (i) formula (A); (ii) heteroaryl; and (iii) N-heterocyclic, and n is an integer equal to 0 or 1, and p is an integer equal to 1 to 3; (d) -CH( phi )CH2C(O)O-Q where Q is selected from the group consisting of alkyl, aryl, heteroaryl and heterocyclic; X' is hydrogen, hydroxy or fluoro; X'' is hydrogen, hydroxy or fluoro, or X' and X'' together form an oxo group, Z is selected from the group consisting of a bond covalently linking R<1> to -CX'X''-, oxygen and sulfur.

专利号:US-6849650-B2
优先权日:1998-02-27
标 题:Heterocyclic compounds, pharmaceutical compositions comprising same, and methods for inhibiting β-amyloid peptide release and/or its synthesis by use of such compounds
发明人：THORSETT EUGENE D; PORTER WARREN J; NISSEN JEFFREY S; LATIMER LEE H; AUDIA JAMES E; DROSTE JAMES
权利人:ATHENA NEUROSCIENCES INC; LILLY CO ELI
摘要:Disclosed are compounds which inhibit β-amyloid peptide release and/or its synthesis, and, accordingly, have utility in treating Alzheimer's disease. Also disclosed are pharmaceutical compositions comprising a compound which inhibits β-amyloid peptide release and/or its synthesis as well as methods for treating Alzheimer's disease both prophylactically and therapeutically with such pharmaceutical compositions.

专利号:EP-0951464-B1
优先权日:1996-11-22
标题:N-(aryl/heteroarylacetyl) amino acid esters, pharmaceutical compositions comprising same, and methods for inhibiting beta-amyloid peptide release and/or its synthesis by use of such compounds
发明人：WU JING; THORSETT EUGENE D; NISSEN JEFFREY S; MABRY THOMAS E; LATIMER LEE H; JOHN VARGHESE; FANG LAWRENCE Y; AUDIA JAMES E
权利人:ELAN PHARM INC; LILLY CO ELI
摘要:Disclosed are compounds which inhibit beta -amyloid peptide release and/or its synthesis, and, accordingly, have utility in treating Alzheimer's disease. Also disclosed are pharmaceutical compositions comprising a compound which inhibits beta -amyloid peptide release and/or its synthesis as well as methods for treating Alzheimer's disease both prophylactically and therapeutically with such pharmaceutical compositions.