An unusual ring contraction in the formation of N-nitrosohexamethyleneimine and N-nitrosopiperidine from tolazamideESHRAGHI, J; LONGO, J; DALTON, D. R et al.Japanese journal of cancer research. 1990, Vol 81, Num 4, pp 324-326, issn 0910-5050Article

Ring contraction of 1,2,4-triazepino[2,3-a]benzimidazol-4-ones. New fused β-lactamsROMANO, C; DE LA CUESTA, E; AVENDANO, C et al.Journal of organic chemistry. 1991, Vol 56, Num 1, pp 74-78, issn 0022-3263, 5 p.Article

Synthesis of ring-contracted, 25-nor-6,5-spiroketal-modified avermectin derivativesMEINKE, P. T; O'CONNOR, S. P; MROZIK, H et al.Tetrahedron letters. 1992, Vol 33, Num 9, pp 1203-1206, issn 0040-4039Article

Encapsulation of molecular hydrogen in fullerene C₆₀ by organic synthesisKOMATSU, Koichi; MURATA, Michihisa; MURATA, Yasujiro et al.Science (Washington, D.C.). 2005, Vol 307, Num 5707, pp 238-240, issn 0036-8075, 3 p.Article

Photoinduced molecular transformations. CXXVI: Photo-double ring contraction of 4a-homo-5α-cholest-3-en-1-one, a steroidal β,γ-unsaturated cyclic ketone, involving photochemical 1,3-acyl migrationSUGINOME, H; TAKEMURA, M; SHIMOYAMA, N et al.Journal of the Chemical Society. Perkin transactions. I. 1991, Num 11, pp 2721-2723, issn 0300-922XArticle

Photolysis of α-diazocyclopentanones. Ring contraction to functionalised cyclobutanes and synthesis of junionone, grandisol and planococcyl acetateARUN GHOSH; BANERJEE, U. K; VENKATESWARAN, R. V et al.Tetrahedron (Oxford. Print). 1990, Vol 46, Num 8, pp 3077-3088, issn 0040-4020, 12 p.Article

Isolation of keto-sphenylthioxime of [2³]cyclophane-1,2-dione. Re-visited contraction of 1,2,5-thiadiazole ring incorporated in a [2³]cyclophane bridge by phenylmagnesium bromideHATTA, T; MATAKA, S; TASHIRO, M et al.Journal of heterocyclic chemistry. 1990, Vol 27, Num 7, pp 1861-1865, issn 0022-152XArticle

Ring conversion of 2-amino-4,5-dihydro-3-furancarbonitriles catalyzed by halide ionsYAMAGATA, K; MARUOKA, H; HASHIMOTO, Y et al.Heterocycles (Sendai). 1989, Vol 29, Num 1, pp 5-9, issn 0385-5414Article

The conformation of some site-specific inhibitors of the ring contraction step in gibberellin plant hormone biosynthesisBAYNHAM, M. K; DICKINSON, J. M; HANSON, J. R et al.Journal of the Chemical Society. Perkin transactions. I. 1988, Num 6, pp 1455-1460, issn 0300-922XArticle

Approches vers la synthèse de la partie aglycone de l'esperamicine-A1 et de la calicheamicine gamma 1I = Synthesis of the bicyclic core structure of esperamicin-A1 and calicheamicin gamma 1IAudrain, Hélène; Grierson, D.1994, 217 p.Thesis

Synthesis of 17α-hydroxy steroids : B-norepitestosteroneKASAL, A.Collection of Czechoslovak chemical communications. 1993, Vol 58, Num 9, pp 2202-2210, issn 0010-0765Article

Kondensierte 1,2-dithiole. II: Synthese von Thieno-1,2-dithiolen = Ring-fused 1,2-dithioles, II. Synthesis of thieno-1,2-dithiolesSTACHEL, H.-D; SCHORP, M; ZOUKAS, T et al.Liebigs Annalen der Chemie. 1992, Num 10, pp 1039-1044, issn 0170-2041Article

The ElcB mechanism in the alkaline hydrolysis of N,N-diethyl-P-(3,5-dimethyl-4-hydroxyphenyl)phosphonamidic chlorideCEVASCO, G; THEA, S.Journal of organic chemistry. 1991, Vol 56, Num 1, pp 72-74, issn 0022-3263, 3 p.Article

Ring contractions in carbohydratesREDLICH, H.Angewandte Chemie. International edition in English. 1994, Vol 33, Num 13, pp 1345-1347, issn 0570-0833Article

Oxidative ring contraction of the phytoalexin cyclobrassinin: a way to brassilexinDEVYS, M; BARBIER, M.Journal of the Chemical Society. Perkin transactions. I. 1990, Num 10, pp 2856-2857, issn 0300-922X, 2 p.Article

Ring contraction of 2-O-trifluoromethanesulphonates of α-hydroxy-γ-lactones to oxetane carboxylic estersWITTY, D. R; FLEET, G. W. J; VOGT, K et al.Tetrahedron letters. 1990, Vol 31, Num 33, pp 4787-4790, issn 0040-4039, 4 p.Article

Protease induced novel ring contraction reaction of 1,3-oxazin-4-one derivativesBAJPAI, L. K; BHADURI, A. P.Journal of molecular catalysis. B, Enzymatic. 1996, Vol 1, Num 3-6, pp 103-108, issn 1381-1177, 5 p.Article

Photoisomerisation of bicyclo[4.2.0]octadienes to tricyclo[4.2.0.0^2,5] octenes : application to the synthesis of [n]ladderanesWARRENER, R. N; PITT, I. G; NUNN, E. E et al.Tetrahedron letters. 1994, Vol 35, Num 4, issn 0040-4039, 502, 621-624 [5 p.]Article

Ringverengung von 1,5,2-Dioxazinan-3,6-dionen und 1,3,2,4-Dioxathiazinan-5-on-2-oxiden zu 1,2-oxazetidin-3-onen = Ring contraction of 1,5,2-dioxazinane-3,6-diones and 1,3,2,4-dioxathiazinan-5-on-2-oxides to 1,2-oxazetidin-3-onesBURCHARDT, A; GEFFKEN, D.Archiv der Pharmazie (Weinheim). 1990, Vol 323, Num 12, pp 967-970, issn 0365-6233Article

Pyridazines. XLV: [1]. On the mechanism of an unusual 1,2-diazine → 1,2-diazole ring contractionHEINISCH, G; HUBER, T; LANGER, C et al.Journal of heterocyclic chemistry. 1989, Vol 26, Num 4, pp 1009-1012, issn 0022-152X, 4 p.Article

Synthesis of ring-concentrated derivatives of erythromycinKIRST, H. A; WIND, J. A; PASCHAL, J. W et al.Journal of organic chemistry. 1987, Vol 52, Num 19, pp 4359-4362, issn 0022-3263Article

Effect of Sulfonyl Protecting Groups on the Neighboring Group Participation Ability of Sulfonamido NitrogenPROUST, Nicolas; GALLUCCI, Judith C; PAQUETTE, Leo A et al.Journal of organic chemistry. 2009, Vol 74, Num 7, pp 2897-2900, issn 0022-3263, 4 p.Article

Investigation of the scope of a Co-mediated O→ C ring-contractionMEEK, Simon J; PRADAUX, Fabienne; DEMONT, Emmanuel H et al.Journal of organic chemistry. 2007, Vol 72, Num 9, pp 3467-3477, issn 0022-3263, 11 p.Article

Conversion of methylcyclohexane over Ir/H-β zeolite in the presence of hydrogenSUGII, Takeshi; KAMIYA, Yuichi; OKUHARA, Toshio et al.Applied catalysis. A, General. 2006, Vol 312, pp 45-51, issn 0926-860X, 7 p.Article

Triphenylphosphine-induced ring contraction of 1,2-dioxinesGREATREX, Ben W; TAYLOR, Dennis K.Journal of organic chemistry. 2004, Vol 69, Num 7, pp 2577-2579, issn 0022-3263, 3 p.Article