E Negishi - Accounts of Chemical Research, 1982 - ACS Publications The cross-coupling reaction of organometallic species with organic halides and related electrophiles represents one of the most straightforward methods for carbon- carbon bond formation (eq 1). Despite its inherent R'M + R2X - R'R2 + MX (1) ... Ei-ichi Negishi obtained has ... Cited by 320 - Related articles
E Negishi, AO King, N Okukado - The Journal of Organic …, 1977 - ACS Publications Sir: Recently, the Ni- or Pd-catalyzed reactions of organo- metallics containing highly electropositive main group metals, such as Li and Mg, with organic halides have provided a new approach to selective cross-~oupling.~~~ In particular, the ability of organoaluminum compounds,' ... Cited by 212 - Related articles
E Negishi, L Anastasia - Chem. Rev, 2003 - ACS Publications Luigi Anastasia was born in Mede (Pavia), Italy. He received a Laurea degree with honors in chemistry from the Università degli Studi di Pavia, Italy, in 1998, under the supervision of Prof. Giovanni Vidari. He was also presented the Best Graduating Student in Chemistry of ... Cited by 208 - Related articles - BL Direct - All 7 versions
E Negishi… - 1980 - getcited.org ... Organometallics in organic synthesis. Post a Comment. CONTRIBUTORS: Author: Negishi, Ei-ichi (b. 1935, d. ----. PUBLISHER: Wiley (New York). SERIES TITLE: YEAR: 1980. PUB TYPE: Book (ISBN 0471031933 ). VOLUME/EDITION: PAGES (INTRO/BODY): ... Cited by 187 - Related articles - Cached - All 2 versions
E Negishi, C Coperet, S Ma, SY Liou, F Liu - Chem. Rev, 1996 - ACS Publications Ei-ichi Negishi received the bachelor's degree from the University of Tokyo in 1958. While he was a research chemist at Teijin, Ltd., Japan, he came to the University of Pennsylvania as a Fulbright Scholar in 1960 and received his Ph.D. degree in 1963. He joined Professor HC ... Cited by 172 - Related articles - BL Direct - All 5 versions
[PDF] from uwindsor.caEI Negishi, T Takahashi - Accounts of Chemical Research, 1994 - ACS Publications ... (2) For our previous reviews, see: (a) Negishi, E.; Takahashi, T. Aldrichimica Acta 1985,18,31. (b) Negishi, E.; Takahashi, T. Synthesis 1988, 1, 1. (c) For a review, see: Schwartz, J.; Labinger, J. A. Angew. ... (5) Negishi, E.; Cederbaum, FE; Takahashi, T. Tetrahedron Lett. ... Cited by 117 - Related articles - BL Direct - All 4 versions
[CITATION] S. j. Holmes, JM Tour, JA Miller, FE Cederbaum, DR Swanson, T. Takahashi
E Negishi, V Bagheri, S Chatterjee, FT Luo, JA Miller … - Tetrahedron Letters, 1983 - Elsevier The reaction of organozincs with acyl chlorides catalyzed by palladium-phosphine complexes, eg, Pd(PPh 3 ) 4 , provides a highly general and convenient route to ketones. ... These results were obtained by LD Boardman of our laboratories. ... *1 Selective Carbon- ... Cited by 87 - Related articles - All 2 versions
E Negishi, N Okukado, AO King, DE Van … - Journal of the …, 1978 - ACS Publications The precise mechanism of the carbometalation reported here is not yet clear. However, our preliminary investigation has revealed that the product 1 in the reaction of phenylacetylene with Me3Al-CI2ZrCp2 is largely an (E)-2-phenylpropenyl- alane species (-95%) mixed with a minor amount ... Cited by 95 - Related articles
E Negishi, T Takahashi, S Baba, DE Van Horn, … - J. Am. Chem. Soc.;( …, 1987 - osti.gov Stereo- and regiodefined alkenylmetals containing Al, Zr, and Zn react with aryl and alkenyl iodides and bromides in the presence of catalytic amounts of Pd or Ni complexes containing phosphine ligands, such as PPh/sub 3/, to give the corresponding cross-coupled products. Palladium ... Cited by 99 - Related articles - Cached - All 2 versions
E Negishi, LF Valente, M Kobayashi - Journal of the American …, 1980 - ACS Publications 2 pling has been achieved in most cases by the Biellmann and related allyl-allyl coupling reactions.' While these reactions appear well suited for synthesizing 1,5-dienes represented by 1, their application to the synthesis of 2 is often complicated by regiochemical ... Cited by 100 - Related articles
[PDF] from iupac.orgE Negishi - Pure & Appl. Chem, 1981 - media.iupac.org Although a number of metallic elements have been shown to be synthetically useful (1), it has become increasing clear that the synthetic capability of each metal is limited. One po- tentially promising way of overcoming this limitation would be to consider the simultaneous use of ... Cited by 94 - Related articles - View as HTML - All 5 versions
DE Van Horn, E Negishi - Journal of the American Chemical …, 1978 - ACS Publications Journal of the American Chemical Society / 100:7 / March 29, 1978 ... U Figure 1. Tris(N-methylthioformohydroxamato)iron(III) viewed down the C3 axis. Principal bond lengths (angstroms) follow: Fe-S, 2.444 (1); Fe-O,2.OlO(l);C(l)-S, 1.681 (2);C(l)-N, 1.295 (2);NC(2), ... Cited by 78 - Related articles
E Negishi, AO King, WL Klima, W … - The Journal of …, 1980 - ACS Publications Ei-ichi Negishi,*' Anthony 0. King, and William L. Klima ... Department of Chemistry, Syracuse University, Syracuse, New York 13210 ... Department of Chemistry, SUNY College at Oswego, Oswego, New York 13126 ... Carbonyl olefination reactions, such as the Wittig ... Cited by 63 - Related articles
E Negishi, DR Swanson, CJ … - The Journal of Organic …, 1990 - ACS Publications (32) Shriver, D. F.; Drezdzon, M. A. The Manipulation of Air Sen- sitive Compounds; Wiley: New York, 1986. (33) Watson, S. C.; Eastham, JF J. Oganomet. Chem. 1967,9,165. (34) Still, CW; Kahn, M.; Mitra, A. J. Org. Chem. 1978, 43, 2923. (35) Krafft, F. Chem. Ber. 1886, 19, ... Cited by 72 - Related articles - All 2 versions
S Baba, E Negishi - Journal of the American Chemical Society, 1976 - ACS Publications (1) This is paper 3 of a series dealing with complexed radicals. Paper 2 is V. W. Day. D. H. Campbell, and CJ Michejda, J. Chem. Soc., Chem. Com- mun., 118 (1975). (2) The neutral fraction was also examined, but not in as much detail. No ep- oxides were found in this fraction for ... Cited by 70 - Related articles
E Negishi, DE Van Horn - Journal of the American Chemical …, 1977 - ACS Publications References and Notes (1) (a) The enantiomeric purity of 3 was determined by use of Whitesides' chiral shift reagent, Eu(dcm)BMD McCreary, DW Lewis, DL Wernick, and GM Whitesides, J. Am. Chem. SOC., 96, 1038 (1974). We wish to thank Dr. Whitesides for the ... Cited by 57 - Related articles
H Matsushita, E Negishi - Journal of the American Chemical …, 1981 - ACS Publications X-ray quality crystals of unsolvated 3 have not yet been isolated, but we have prepared and crystallized (by vacuum sublimation) a diglyme adduct of 3. The structure of Wz(0zCCF3)4-z/3- (CH30CH2CH20CH2CH20CH3) was determined from dif- fraction data collected at -160 ... Cited by 53 - Related articles
[CITATION] … Carbon-Carbon Bond Formation Via Transition-Metal Catalysis. 19. a Versatile and Selective Route to Difunctional Trisubstituted (E)-Alkene Synthons Via …
[PDF] from csj.jpE Negishi, T Takahashi - Bulletin of the Chemical Society of Japan, 1998 - J-STAGE 756 Bull. Chem. Soc. Jpn., 71, No. 4 (1998) ACCOUNTS ArX cat. NiLn HZrCp2Ci RH RCHCH ? >=< s, H ZrCp2CI r= , H R1 XH cat. PdLn Scheme 1. RH M H Ar RH Counts, and Weigold published in 197415) allocated less than a page on Cp2Zr11 chemistry. We became ... Cited by 46 - Related articles - BL Direct - All 9 versions
DY Kondakov, E Negishi - J. Am. Chem. Soc, 1996 - ACS Publications We recently reported a Zr-catalyzed enantioselective methylalumination of monosubstituted alkenes. 1 In contrast, the initial outlook for achieving a similar Zr-catalyzed enantioselective alkylmetalation with ethyl-, propyl-, and higher alkylmetals was not promising. The ... Cited by 43 - Related articles - All 4 versions
[CITATION] Organozirconium Compounds as New Reagents and Intermediates
E Negishi - Journal of Organometallic Chemistry, 2002 - Elsevier This paper describes (a) a very brief history leading to the birth of the Pd-catalyzed cross-coupling, (b) its birth in the mid-1970s, (c) the development of the Pd-catalyzed cross-coupling with organometals containing Zn, Al, Zr, and Mg (the 'first-generation' Pd-catalyzed cross- ... Cited by 41 - Related articles - All 7 versions
S Ma, E Negishi - Journal of the American Chemical Society, 1995 - ACS Publications Palladium-Catalyzed Cyclization of o-Haloallenes. A New ... General Route to Common, Medium, and Large Ring ... Contribution ji-om the Department of Chemistry, Purdue University, West Lufayette, Indiana 47907 Received February 9, 1 9 9 9 Cited by 46 - Related articles - BL Direct - All 3 versions
X Zeng, M Qian, Q Hu, E Negishi - Angewandte Chemie, 2004 - Wiley Online Library Methyl-branched conjugated dienes and oligoenes represent a wide variety of natural products including carotenoids, antibiotics, and antitumor agents. Consequently, a number of synthetic methods have been devised for their synthesis. The Wittig and other carbonyl olefination ... Cited by 39 - Related articles - BL Direct - All 6 versions
E Negishi, DY Kondakov, D Choueiry, K Kasai, … - J. Am. Chem. …, 1996 - ACS Publications The reactions of internal and terminal alkynes with organoalanes containing Et, n-Pr, and i-Bu groups in the presence of Cp 2 ZrCl 2 and MeZrCp 2 Cl were investigated with the goal of clarifying mechanistic details of some representative cases. Three fundamentally different ... Cited by 44 - Related articles - BL Direct - All 5 versions
L Anastasia, E Negishi - Org. Lett, 2001 - ACS Publications We report herein that in situ treatment of terminal alkynes with LDA or its equivalent followed by addition of ZnBr 2 or ZnCl 2 (Procedure A, eq 1 in Scheme 1) serves as a superior procedure in many cases for generating alkynylzinc reagents used in the Pd-catalyzed alkynylation. ... Cited by 36 - Related articles - BL Direct - All 3 versions
E Negishi, A Alimardanov, C Xu - Org. Lett, 2000 - ACS Publications All seven C−C single bonds linking the six acetylene-derived C C and C≡C units were formed via Pd-catalyzed cross coupling. Some notable steps include (i) direct terminal alkyne synthesis using ethynylzinc bromide without silyl protection−deprotection, 4 (ii) double ... Cited by 31 - Related articles - BL Direct - All 3 versions
DY Kondakov, E Negishi - Journal of the American Chemical …, 1995 - ACS Publications Catalytic enantioselective carbon-carbon bond formation involving simple alkenes without heteroatom functional groups represents a highly desirable but formidable synthetic task.' Aside from the long-known asymmetric cyclopropanation catalyzed by various late transition metal ... Cited by 30 - Related articles - BL Direct - All 3 versions
… Zhang, GZ Wu, G Agnel, EI Negishi - Journal of the American …, 1990 - ACS Publications ... ( I ) The critical results described in this paper were orally presented. (a) Zhang, Y.; Negishi, E. Presented at the 5th IUPAC Symposium on Or- ganometallic Chemistry Directed towards Organic Synthesis, Florence, Italy, Oct 1-6, 1989; OP-BO7. ... Y.; Negishi, E. J. Am. Chem. SOC. ... Cited by 31 - Related articles - All 3 versions
… , Z Owczarczyk, LS Harring, E Negishi - Journal of the …, 1994 - ACS Publications Takumichi Sugihara,la Christophe Cop6ret,lb Zbyslaw Owczarczyk, Lori S. Harring,lc and Ei-ichi Negishi' ... Department of Chemistry, Purdue University West Lafayette, Zndiana 47907 ... In any cascading carbometalation process, an intricate com- petition between the ... Cited by 30 - Related articles - BL Direct - All 4 versions
C Xu, E Negishi - Tetrahedron Letters, 1999 - Elsevier TETRAHEDRON LETTERS Pergamon Tetr~edronLette~40(1999)431M34 A highly efficient and selective synthesis of lissoclinolide featuring hydrogen transfer hydrozirconation, trans- selective Pd-catalyzed cross coupling of alkenyizirconiums with 1,1-dibromoalkenes and Ag- ... Cited by 32 - Related articles - BL Direct - All 4 versions
E Negishi, SY Liou, C Xu, S Huo - Org. Lett, 2002 - ACS Publications We report herein an unprecedentedly efficient, highly selective, and general methodology for the synthesis of stereo- and regiodefined isoprenoids containing 1,5-diene moieties of all conceivable geometrical combinations via one-pot chain elongation by one E or Z C 5 isoprene unit ... Cited by 32 - Related articles - BL Direct - All 3 versions
S Ma, E Negishi - J. Org. Chem, 1997 - ACS Publications We report herein a novel strategy for achieving net anti-carbometalation of homopropargyl alcohols and even some higher homologues. This strategy critically hinges on our finding that the syn- and stereorandom-carboalumination products obtained from ω-hydroxyalkynes ... Cited by 31 - Related articles - BL Direct - All 2 versions