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Results 1 to 25 of 1018

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PHOTOINDUCED OXYGENATION OF ROTENOIDS. I. RING CONTRACTION OF DEHYDROROTENONE TO COUMARONOCHROMONEHAMADA M; CHUBACHI M.1972; BULL. INST. CHEM. RES., KYOTO UNIV.; JAP.; DA. 1972; VOL. 50; NO 3; PP. 168-175; BIBL. 11 REF.Serial Issue

RINGVERENGUNG BEI 6H-1.3.4-THIADIAZINEN = CONTRACTION DE CYCLE CHEZ LES 6H-THIADIAZINES-1,3,4SCHMIDT RR; HUTH H.1975; TETRAHEDRON LETTERS; G.B.; DA. 1975; NO 1; PP. 33-36; BIBL. 9 REF.Article

RING TRANSFORMATIONS IN REACTIONS OF HETEROCYCLIC HALOGENO COMPOUNDS WITH NUCLEOPHILES. XXVIII. A STUDY OF THE MECHANISM OF TRANSFORMATION OF CHLOROPYRAZINE INTO 2-CYANOIMIDAZOLE USING 14C- AND 15N-LABELLINGLONT PJ; VAN DER PLAS HC.1973; REC. TRAV. CHIM. PAYS-BAS; PAYS-BAS; DA. 1973; VOL. 92; NO 2; PP. 311-316; BIBL. 6 REF.Serial Issue

RING CONTRACTION OF 2-ALKYLIDENECYCLOBUTANOLS TO CYCLOPROPYL CARBONYL COMPOUNDSBARNIER JP; DENIS JM; SALAUN JR et al.1973; J. CHEM. SOC., CHEM. COMMUNIC.; G.B.; DA. 1973; NO 4; PP. 103-104; BIBL. 4 REF.Serial Issue

RING CONTRACTION UPON ELECTRON-IMPACT AS A FUNCTION OF RING SIZE: THE MASS SPECTROMETRIC FRAGMENTATION OF 2,3,4,5-TETRAHYDROBENZOXEPIN AND LOWER HOMOLOGUESRICHTER WJ; LIEHR JG; BURLINGAME AL et al.1973; ORG. MASS. SPECTROM.; G.B.; DA. 1973; VOL. 7; NO 4; PP. 479-484; BIBL. 17 REF.Serial Issue

BIOSYNTHESIS OF VITAMIN B12: IDENTITY OF FRAGMENT EXTRUDED DURING RING CONTRACTION TO THE CORRIN MACROCYCLEBATTERSBY AR; BUSHELL MJ; JONES C et al.1981; PROC. NATL. ACAD. SCI. USA, PHYS. SCI.; ISSN 0273-1142; USA; DA. 1981; VOL. 78; NO 1; PP. 13-15; BIBL. 14 REF.Article

ISOMERISATION DU METHYLCYCLODECANE ET DU METHYLCYCLONONANE EN PRESENCE D'ACIDE SULFURIQUE CONCENTREANFILOGOVA SN; BALENKOVA ES.1975; NEFTEKHIMIJA; S.S.S.R.; DA. 1975; VOL. 15; NO 3; PP. 354-358; BIBL. 7 REF.Article

RING CONTRACTION OF 1,2,4-TRIAZIN-3-ONES TO IMIDAZOLIN-2-ONES AND 1,2,3-TRIAZOLESREES CW; SALE AA.1973; J. CHEM. SOC., PERKIN TRANS., 1; G.B.; DA. 1973; NO 6; PP. 545-550; BIBL. 18 REF.Serial Issue

UNTERSUCHUNGEN VON REAKTIONSMECHANISMEN DURCH ISOTOPENMARKIERUNG. I. ZUR RINGVERENGUNG VON 3,3-DICHLOR-1,2,3,4-TETRAHYDRO-2,4-CHINOLINDIONEN = ETUDE DES MECANISMES DE REACTION PAR MARQUAGE ISOTOPIQUE. I. CONTRACTION DE CYCLE DES DICHLORO-3,3 TETRAHYDRO-1,2,3,4 QUINOLEINEDIONES-2,4KOLLENZ G; KAPPE T.1974; ANN. (JUSTUS LIEBIGS) CHEM.; DTSCH.; DA. 1974; NO 10; PP. 1634-1638; ABS. ANGL.; BIBL. 18 REF.Article

UMLAGERUNG CYCLISCHER ALLYLCARBINYL-ANIONEN: RINGVERENGUNG AUF GRUND VON STABILITAETSUNTERSCHIEDEN ZWISCHEN PRIMAEREN UND SEKUNDAEREN GRIGNARD-VERBINDUNGEN = TRANSPOSITION DES ANIONS ALLYLCARBINYL CYCLIQUES: CONTRACTION DE CYCLE DUE A DES DIFFERENCES DE STABILITE ENTRE REACTIFS DE GRIGNARD PRIMAIRES ET SECONDAIRESMAERCKER A; GEUSS R.1973; CHEM. BER.; DTSCH.; DA. 1973; VOL. 106; NO 3; PP. 773-797; ABS. ANGL.; BIBL. 55 REF.Serial Issue

PHOTOCHEMISTRY. XII. PHOTOCHEMICAL BEHAVIOR OF 2-METHYL-3(2H)-PYRIDAZINONE 1-OXIDESTSUCHIYA T; ARAI H; NASEBE M et al.1974; CHEM. PHARM. BULL.; JAP.; DA. 1974; VOL. 22; NO 10; PP. 2301-2305; BIBL. 23 REF.Article

THERMAL REACTIONS OF ALKOXYCYCLOHEPTATRIENES AT 300-800OCTEZUKA T; HANDA K; MUKAI T et al.1974; CHEM. LETTERS; JAP.; DA. 1974; NO 11; PP. 1341-1346; BIBL. 22 REF.Article

A NEW HETEROCYCLE: 2,7-DIHYDRO-1,4,5-SELENADIAZEPINEAJELLO E.1972; J. HETEROCYCL. CHEM.; U.S.A.; DA. 1972; VOL. 9; NO 6; PP. 1427-1428; BIBL. 7 REF.Serial Issue

OXIDATIVE TRANSFORMATIONS OF HOP CONSTITUENTS: SOME NEW FINDINGS RELATING TO THE FORMATION AND BREAKDOWN OF HUMULONEJOHN GD; SHANNON PV.1975; CHEM. AND INDUSTRY; G.B.; DA. 1975; NO 15; PP. 651; BIBL. 6 REF.Article

A NEW BASE CATALYZED RING CONTRACTION: 2,4,5-TRIARYLIMIDAZOLES FROM 2,4,6-TRIARYL-4H-1,3,5-THIADIAZINESGIORDANO C; BELLI A.1975; SYNTHESIS; GERM.; DA. 1975; NO 3; PP. 167-168; BIBL. 5 REF.Article

THE RING CONTRACTION OF CYCLIC TRIMETHYLSILYL ENOL ETHERS WITH ARENESULFONYL AZIDES. RING EXPANSION AND RING CONTRACTION REACTIONS BY MEANS OF DIAZONIUM BETAINES. IIIWOHL RA.1973; HELV. CHIM. ACTA; SUISSE; DA. 1973; VOL. 56; NO 5; PP. 1826-1828; BIBL. 5 REF.Serial Issue

REACTION DU DICHLORURE DE L'ACIDE METHYLPHOSPHONIQUE AVEC L'OCTAMETHYLCYCLOTETRASILAZANE METALLOSUBSTITUEDREJMAN YA A; RUMBA G YA.1973; LATV. P.S.R. ZINAT. AKAD. VEST., KIM. SER.; S.S.S.R.; DA. 1973; NO 2; PP. 197-293; ABS. ANGL.; BIBL. 31 REF.Serial Issue

RING CONTRACTION OF TRANS, TRANS, TRANS-CYCLODODECA-1,5,9-TRIENE BY REACTION WITH CIS-BIS (TRIMETHYLGERMYL) TETRACARBONYLRUTHENIUMKNOX SAR; PHILLIPS RP; STONE FGA et al.1972; J. CHEM. SOC., CHEM. COMMUNIC.; G.B.; DA. 1972; NO 22; PP. 1227-1228; BIBL. 2 REF.Serial Issue

NEIGHBORING GROUP PROPERTIES OF CYCLOOCTATETRAENE. HYDROLYSIS RATE AND MECHANISM OF RING CONTRACTION OF THE CHLOROMETHYL DERIVATIVEKITCHING W; HENZEL KA; PAQUETTE LA et al.1975; J. AMER. CHEM. SOC.; U.S.A.; DA. 1975; VOL. 97; NO 16; PP. 4643-4648; BIBL. 24 REF.Article

RING CONTRACTION OF 1,2,4-BENZOXADIAZINES TO BENZOXAZOLESGILCHRIST TL; HARRIS CJ; PEEK ME et al.1975; J. CHEM. SOC., CHEM. COMMUNIC.; G.B.; DA. 1975; NO 24; PP. 962-963; BIBL. 5 REF.Article

TRANSFORMATIONS DU CYCLE DANS LES REACTIONS DE SUBSTITUTION NUCLEOPHILE DES DERIVES HALOGENES DES AZINESPORADOWSKA H; CZUBA W.1975; WIADOM. CHEM.; POLSKA; DA. 1975; VOL. 29; NO 3; PP. 173-192; ABS. ANGL.; BIBL. 2 P.Article

RING CONTRACTION REACTIONS IN CYCLOOCTATETRAENE OXIDE CATALYZED BY TRANSITION METALSSTRUKUL G; VIGLINO P; ROS R et al.1974; J. ORGANOMETAL. CHEM.; SWITZ.; DA. 1974; VOL. 74; NO 2; PP. 307-312; BIBL. 12 REF.Article

THE PHOTOCHEMISTRY OF CYCLIC NONENOLIZABLE ALPHA -DIKETONES AND KETONES. INFLUENCE OF REMOTELY POSITIONED SULFIDE, SULFONE, AND SULFOXIDE FUNCTIONALITIESKOOI J; WYNBERG H; KELLOGG RM et al.1973; TETRAHEDRON; G.B.; DA. 1973; VOL. 29; NO 14; PP. 2135-2140; BIBL. 14 REF.Serial Issue

RING CONTRACTION VIA A FAVORSKII-TYPE REARRANGEMENT: CYCLOUNDECANONE.WOHLLEBE J; GARBISCH EW JR.1977; ORGAN. SYNTHESES; U.S.A.; DA. 1977; VOL. 56; PP. 107-111; BIBL. 8 REF.Article

THE MECHANISMS OF CARBONIUM ION REARRANGEMENTS OF TRICYCLOUNDECANES ELUCIDATED BY EMPIRICAL FORCE FIELD CALCULATIONS.OSAWA E; AIGAMI K; TAKAISHI N et al.1977; J. AMER. CHEM. SOC.; U.S.A.; DA. 1977; VOL. 99; NO 16; PP. 5361-5393; BIBL. 52 REF.Article

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