Cascade cyclizationsHOFFMANN, H. M. R.Angewandte Chemie. International edition in English. 1992, Vol 31, Num 10, pp 1332-1334, issn 0570-0833Article

Die Cycloaddition von Allyl-Kationen an 1,3-Diene: Eine allgemeine Methode zur Synthese siebengliedriger Carbocyclen = La cycloaddition des cations allyliques sur les diènes-1,3: une méthode générale de synthèse des carbocycles à sept carbones = Cycloaddition of allyl cations on 1-3 dienes: a general synthetic method for seven membered ringsHOFFMANN, H. M. R.Angewandte Chemie. 1984, Vol 96, Num 1, pp 29-48, issn 0044-8249Article

The first and second Cinchona rearrangement. Two fundamental transformations of alkaloid chemistryFRANZ, M. Heiko; RÖPER, Stefanie; WARTCHOW, Rudolf et al.Journal of organic chemistry. 2004, Vol 69, Num 9, pp 2983-2991, issn 0022-3263, 9 p.Article

Crystal structure of (2S, 5R)-1-chloromethyl-2-hydroxymethyl-5-vinyl-1- azoniabicyclo[2.2.2]octane chloride, (C₁₁H₁₉ClNO)ClVON RIESEN, C; WARTCHOW, R; HOFFMANN, H. M. R et al.Zeitschrift für Kristallographie. New crystal structures. 1998, Vol 213, Num 3, pp 483-484, issn 1433-7266Article

Crystal structure of (3S,8R,9R)-3,9-dihydroxy-6'-methoxy-3-phenyl-10,11-dinorcinchonane hemihydrate, (C₂₄H₂₆N₂O₃) . 0.5H₂OLANGER, P; HOFFMANN, H. M. R; WARTCHOW, R et al.Zeitschrift für Kristallographie. New crystal structures. 1998, Vol 213, Num 1, pp 193-194, issn 1433-7266Article

Crystal structure of 8-benzenesulfonyl-9,11,11-trimethyl-2,10,12-trioxa-tricyclo[7.2.1.0^1,6]dodecane, C₁₈H₂₄O₅SWARTCHOW, R; WEICHERT, A; HOFFMANN, H. M. R et al.Zeitschrift für Kristallographie. 1996, Vol 211, Num 11, pp 843-844, issn 0044-2968Article

The facile 1,5-hydrogen shift in 6-hydroxy-2,4-cycloheptadien-1-onesEGGERT, U; STOHRER, I; HOFFMANN, H. M. R et al.Tetrahedron letters. 1992, Vol 33, Num 24, pp 3465-3468, issn 0040-4039Article

Synthesis and reactions of α-methylene-β-keto sulfonesWEICHERT, A; HOFFMANN, H. M. R.Journal of organic chemistry. 1991, Vol 56, Num 13, pp 4098-4112, issn 0022-3263, 15 p.Article

Highly alkylated cyclohexanes. ― X-Ray crystal structures, force-field calculations, and conformations of cis/trans-1,4-disubstituted cyclohexane isomersHASEL, W; SCHNICK, W; JANSEN, M et al.Chemische Berichte. 1988, Vol 121, Num 8, pp 1469-1474, issn 0009-2940Article

Trispiro[2.1.2.1.2.1]dodecan-4,8-12-trion = La trispiro [2.1.2.1.2.1] dodécanetrione-4,8,12 = Trispiro [2.1.2.1.2.1] dodecane-4,8,12-trioneHOFFMANN, H. M. R; WALENTA, A; EGGERT, U et al.Angewandte Chemie. 1985, Vol 97, Num 7, pp 599-600, issn 0044-8249Article

DABCO-catalyzed coupling of aldehydes with activated double bonds. IV: Stereoselective synthesis of trisubstituted olefins and terpenoid building blocks via 2-(hydroxyalkyl)-2-propenoic estersHOFFMANN, H. M. R; RABE, J.Journal of organic chemistry. 1985, Vol 50, Num 20, pp 3849-3859, issn 0022-3263Article

Crystal structure of 2(R),3(S),4(R),4a(R),4b(R),5(R),8a(S)9a(S)-2-acetoxymethyl-5-tri-methylsilyl-7-iodo-3,4,4a,4b,5,8,8a,9a-octahydro-2H-pyrano[2,3-b]-benzofuran-3,4-diol diacetate, C₂₁H₃₁IO₈SiHERDEN, U; HOFFMANN, H. M. R; WARTCHOW, R et al.Zeitschrift für Kristallographie. New crystal structures. 1997, Vol 212, Num 1, pp 43-44, issn 1433-7266Article

Stereoselective synthesis of precursors of naturally occurring robustadials A and BKOSER, S; HOFFMANN, H. M. R; WILLIAMS, D. J et al.Journal of organic chemistry. 1993, Vol 58, Num 23, pp 6163-6165, issn 0022-3263Article

Improved procedure for the reductive intermolecular cyclodehalogenation of 2,6-dibromocyclohexanones to furan and fulvenesSCHOTTELIUS, T; HOFFMANN, H. M. R.Chemische Berichte. 1991, Vol 124, Num 7, pp 1673-1675, issn 0009-2940Article

Intramolecular Diels-Alder reaction of a sulphonyl-activated 1,3,9-trieneWEICHERT, A; HOFFMANN, H. M. R.Journal of the Chemical Society. Perkin transactions. I. 1990, Num 7, pp 2154-2156, issn 0300-922X, 3 p.Article

A new synthesis of functionalized 6,8-dioxabicyclo[3.2.1]octanesDAUDE, N; EGGERT, U; HOFFMANN, H. M. R et al.Journal of the Chemical Society. Chemical communications. 1988, Num 3, pp 206-207, issn 0022-4936Article

Synthesis and π-facially selective cycloadditions of pinofuransKÖVER, A; HOFFMANN, H. M. R.Tetrahedron (Oxford. Print). 1988, Vol 44, Num 22, pp 6831-6840, issn 0040-4020Article

Ultrasons in the metal promoted cycloaddition of α,α'-dibromo ketones to 1,3-dienesJOSHI, N. N; HOFFMANN, H. M. R.Tetrahedron letters. 1986, Vol 27, Num 6, pp 687-690, issn 0040-4039Article

1,4-Diazobicyclo[2.2.2]octane-catalyzed coupling of aldehydes and activated double bonds. III: A short and practical synthesis of mikanecic acid (4-vinyl-1-cyclohexene-1,4-dicarboxylic acid)HOFFMANN, H. M. R; RABE, J.Helvetica chimica acta. 1984, Vol 67, Num 2, pp 413-415, issn 0018-019XArticle

Neue, stereokontrollierte Synthese von Alkenen mit trisubstituierter Doppelbindung über funktionalisierte Acrylsäureester = Nouvelle synthèse stéréocontrôlée d'alcénes ayant une double liaison trisubstituée à partir d'acrylates fonctionnalisés = New, stereocontrolled synthesis of alkenes with trisubstituted double boud, from fonctionalized acrylic estersRABE, J; HOFFMANN, H. M. R.Angewandte Chemie. 1983, Vol 95, Num 10, pp 796-797, issn 0044-8249Article

Synthesis of homobenzoctamine [9,10-dihydro-9-(1-methylaminomethyl)-9,10-propanoanthracene] and homomaprotiline [9,10-dihydro-9-(3-methylaminopropyl)-9,10-propanoanthracene]KARAMA, U; HOFFMANN, H. M. R.Chemische Berichte. 1992, Vol 125, Num 12, pp 2809-2812, issn 0009-2940Article

α-Methylidene- and α-alkylidene-β-lactams from nonproteinogenic amino acidsBUCHHOLZ, R; HOFFMANN, H. M. R.Helvetica chimica acta. 1991, Vol 74, Num 6, pp 1213-1220, issn 0018-019XArticle

Vicinal bromopropargoxylation of cyclic olefins and cobaloxime-mediated heteroannulation to functionalized 3-methyleneoxacyclopentanesLAST, K; HOFFMANN, H. M. R.Synthesis (Stuttgart). 1989, Num 12, pp 901-905, issn 0039-7881Article

Aflatoxins revisited: convergent synthesis of the ABC-moietyWOLFF, S; HOFFMANN, H. M. R.Synthesis (Stuttgart). 1988, Num 10, pp 760-763, issn 0039-7881Article

Stereoselective generation and facile dimerization of (E)-2-methylene-3-alkenoic acid estersPOLY, W; SCHOMBURG, D; HOFFMANN, H. M. R et al.Journal of organic chemistry. 1988, Vol 53, Num 16, pp 3701-3710, issn 0022-3263Article