Papers by Armin D Meijere
De Novo Synthesis of Racemic Spirocyclopropane-Annelated 2-Deoxyhexose Derivatives
European Journal of Organic Chemistry, 2003
ABSTRACT
Syntheses, Structural Characterization, and Kinetic Investigations of Metalla[3]triangulanes: Isoelectronic Nickel(0) and Copper(I) Complexes with Bicyclopropylidene (bcp) and Dicyclopropylacetylene (dcpa) as Ligands
European Journal of Organic Chemistry, 2021
Chiral Building Blocks from (+)-(S)-7,7a-Dihydro-7a-methylindane-1,5(6H)-dione (Hajos-Parrish Diketone)
... Chemie and vrnstitut fUr （）rganische Cherriie， Georg−August−Universittit GOttingen， Tammannst... more ... Chemie and vrnstitut fUr （）rganische Cherriie， Georg−August−Universittit GOttingen， Tammannstrasse 2・， D−37077 GOttingen， Germany， Fax：＋49（0）551−399475． E−mail二ameijer 1＠uni−goettingen．de Thig． paper is submitted through Professor Shuntaro ...
![Research paper thumbnail of Benzoanellated [2.2]Paracylophanes: Synthesis and Electronic Properties](https://a.academia-assets.com/images/blank-paper.jpg)
Benzoanellated [2.2]Paracylophanes: Synthesis and Electronic Properties
Mono- and dibenzoannelated [2.2]paracyclophanes 12 and 1 were synthesized by palladium-catalyzed ... more Mono- and dibenzoannelated [2.2]paracyclophanes 12 and 1 were synthesized by palladium-catalyzed twoand four-fold alkenylation of vicinal di- and tetrabromides 5 and 6, respectively, and subsequent electrocyclization/ dehydrogenation of the resulting (E,Z,E)-trienes. Further extensions of the annelated ring systems, leading to the tetrahydronaphthalene derivative 15, the bis-terphenylene derivative 16, and the benzobis[2.2]paracyclophane 18, were achieved through derivatization of suitable substituents introduced with the alkene coupling component. Mono- and polyanions of some derivatives were generated and studied by ESR, ENDOR, and NMR spectroscopy, as well as by cyclic voltammetry. The assembly of mutually orthogonal r-systems in arene annelated [2.2]paracyclophanes allows the reversible incorporation of up to six additional electrons per molecule, which is the upper limit for hydrocarbons reported to date.
Zwitterion mediated cocyclo-oligomerization of small ring ethers. Cycloadditions to a spiroanellated bicyclopropyl unit
J. Chem. Soc., Chem. Commun., 1983
ABSTRACT
Easy access to various substituted 4-aminocyclopentenes by rearrangement of 2-ethenyl-substituted cyclopropylamines
Journal of the Chemical Society, Perkin Transactions 1, 1998
... Chem., 1962, 27, 3317 CAS ; (b) RD Elliot, GA Rener, JM Riordan, JA Secrist III, LL Bennett, ... more ... Chem., 1962, 27, 3317 CAS ; (b) RD Elliot, GA Rener, JM Riordan, JA Secrist III, LL Bennett, Jr., WB Parker and JA Montgomery, J. Med. ... 9, (a) JM Simpson and HG Richey, Tetrahedron Lett., 1973, 2545 Article CAS ; (b) G. McGaffin, B. Grimm, U. Heinicke, H. Michaelsen, A. de ...
Sport, Spiel, Spannung ? die Chemie der kleinen Ringe
Chemie in unserer Zeit, 1982
Chemical Reviews, 2006
The construction of highly complex organic molecules by the assembly of simple molecular "buildin... more The construction of highly complex organic molecules by the assembly of simple molecular "building blocks" is not at all a new concept in organic synthesis, as, for example, numerous Diels-Alder and other cycloadditions or condensation reactions show. What is new, however, is an im
Cyclopropanation of tricyclo[5.2.1.)4,10]deca-2,5,8-triene (triquinacene)
Tetrahedron Letters, 1975
A simple route to hexacyclo[4.4.0.02,4.03,10.05,8.07,9] decane (“barettane”) and pentacyclo[5.2.1.02,6.03,5.04,8] decane (“dihydrobarettane”)
Tetrahedron Letters, 1977
Bulletin des Sociétés Chimiques Belges, 2010
Acta Chemica Scandinavica, 1988
Neues über Carbokationen
Chemie in unserer Zeit, 1975
ChemInform Abstract: Facile Formation of Dihydroacepentalenediide from centro-Substituted Tribenzotriquinacenes with C-C Bond Cleavage
ChemInform, 2010
ABSTRACT
ChemInform, 2010
Selective Formation of 4-Ethoxy-5-methylene-2-cyclopentenones and 3-Ethoxy-2-(1'-morpholinoalkeny... more Selective Formation of 4-Ethoxy-5-methylene-2-cyclopentenones and 3-Ethoxy-2-(1'-morpholinoalkenyl)-2-cyclopentenones from (1-Ethoxy-3-morpholino-alkenylidene)pentacarbonylchromium Complexes and Terminal Alkynes -A Short Enantioselective Synthesis of the Hypotensive Oudenone. -The carbonyl complexes (I) react with terminal alkynes in DME to give the 4-ethoxy-2-cyclopentenones (III), while in THF/MeCN the 3-ethoxy-2-cyclopentenones (V) are formed. Product (VIII) is utilized in a short enantioselective synthesis of the tyrosine hydroxylase inhibiting natural product oudenone (IX). -(FLYNN,
ChemInform Abstract: From Spiropentanes to Linear and Angular Oligo- and Polytriangulanes
ChemInform, 2010
Synlett, 2001
2-(Bicyclopropylidenyl)-and 2-(trans-2'-Cyclopropylcyclopropyl)-4,4,5,5-tetramethyl-1,3-dioxa-2-b... more 2-(Bicyclopropylidenyl)-and 2-(trans-2'-Cyclopropylcyclopropyl)-4,4,5,5-tetramethyl-1,3-dioxa-2-borolane and Their Palladium-Catalyzed Cross-Coupling Reactions.-Birch reduction of bicyclopropylidenylboronate (III) produces the trans product (IV) which readily undergoes Pd-catalyzed coupling reactions with a large variety of aryl and vinyl halides.
![Research paper thumbnail of Cyclopropyl Building Blocks for Organic Synthesis, 131. Palladium-Catalyzed Bicyclization with Carbonyl Insertion of Alkenyl-Tethered Propargyl Carbonates Towards a Scalable Synthesis of Various 2-(Bicyclo[3.1.0]hex-1-yl)acrylates](https://attachments.academia-assets.com/85222347/thumbnails/1.jpg)
Advanced Synthesis Catalysis, Oct 1, 2006
An efficient two-step synthesis of 2-[(diphenylmethylene)aminol cyclobutenecarboxylate (4a) and s... more An efficient two-step synthesis of 2-[(diphenylmethylene)aminol cyclobutenecarboxylate (4a) and some analogous derivatives from 2-chloro-2-cyclopropylideneacetates 2, 17, 22, and 25 and nonenolizable ketimines, especially diphenylmethyleneamine (DPMA-H), is described. A likely mechanism for the formation of 4a from the primary Michael adduct 3 of DPMA-H to 2 and its substituted analogues is presented. The unique neighboring group effect of the DPMA moiety to allow formation of an azaspiropentane intermediate and its regioselective rearrangement to cyclobutenamine derivatives is discussed and further exemplified by an extremely facile SET a-chlorination. Compound 4a and derivatives undergo a thermal ring-opening reaction to the corresponding butadienes with subsequent formation of 1,3-disubstituted 3,4-dihydroisoquinolines 39. Further transformations of 4a and some derivatives include transesterification, hydrolysis to methyl 2-oxocyclobutanecarboxylates, and addition of N-phenyltriazolinedione. Recently we have described a new isoquinoline synthesis proceeding via the formal [4 + 21 cycloaddition of an
Eine n�tzliche Synthese von Cyclopropylaminen aus Carbons�uredialkylamiden
Angewandte Chemie, 1996
ChemInform Abstract: ChemInform Abstract: Cyclopropyl Building Blocks in Organic Synthesis. Part 73. Nucleophilic Trapping of π-Allylpalladium Intermediates Generated by Carbopalladation of Bicyclopropylidene: A Novel Three-Component Reaction
Cheminform, 2002
ABSTRACT ChemInform is a weekly Abstracting Service, delivering concise information at a glance t... more ABSTRACT ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
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Papers by Armin D Meijere