Journal articles on the topic 'Cyclobutenediones'
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Allen, Annette D., Jim D. Colomvakos, Ian Egle, et al. "1995 R.U. Lemieux Award Lecture Ketenes and bisketeness: organic chemistry in microcosm." Canadian Journal of Chemistry 74, no. 4 (1996): 457–64. http://dx.doi.org/10.1139/v96-050.
Full textLiu, Ronghua, and Thomas T. Tidwell. "A stabilized and persistent tetraketene: 1,4-bis(1′,4′-dioxo-3′-trimethylsilyl-2′-buta-1′,3′-dienyl)benzene." Canadian Journal of Chemistry 73, no. 11 (1995): 1818–22. http://dx.doi.org/10.1139/v95-224.
Full textWang, Pengcheng, Ruirui Yu, Sajjad Ali, et al. "Silver Catalyzed Decarbonylative [3 + 2] Cycloaddition of Cyclobutenediones and Formamides." Molecules 26, no. 10 (2021): 2974. http://dx.doi.org/10.3390/molecules26102974.
Full textSchaumann, Ernst, Gerrit Oppermann, Michael Stranberg, and Harold W. Moore. "New Syntheses and Ring Expansion Reactions of Cyclobutenimines." Australian Journal of Chemistry 63, no. 12 (2010): 1656. http://dx.doi.org/10.1071/ch10318.
Full textFu, Nanyan, Annette D. Allen, Winnie Chan, et al. "Generation, observation, and reactivity of furyl- and thienylketenes and bisketenes." Canadian Journal of Chemistry 86, no. 4 (2008): 333–41. http://dx.doi.org/10.1139/v08-021.
Full textAvalos, Javier, Harold W. Moore, Michael W. Reed, and Eloy Rodriguez. "Sensitizing potential of cyclobutenediones." Contact Dermatitis 21, no. 5 (1989): 341–42. http://dx.doi.org/10.1111/j.1600-0536.1989.tb04757.x.
Full textLee, Kwan Hee, and Harold W. Moore. "Unusual Transformation of Cyclobutenediones into Butenolides." Journal of the Korean Chemical Society 47, no. 3 (2003): 229–36. http://dx.doi.org/10.5012/jkcs.2003.47.3.229.
Full textBennett, Ryan M., Wei Sun, Dharyl C. Wilson, Mark E. Light, and David C. Harrowven. "A new mode of cyclobutenedione ring opening for the synthesis of 2-oxobut-3-enamides and tetrasubstituted furans." Chemical Communications 57, no. 46 (2021): 5694–97. http://dx.doi.org/10.1039/d1cc02097h.
Full textMukkanti, Amere, and Mariappan Periasamy. "Methods of synthesis of cyclobutenediones." Arkivoc 2005, no. 11 (2004): 48–77. http://dx.doi.org/10.3998/ark.5550190.0006.b07.
Full textPetasis, Nicos A., and Dian-Kui Fu. "Synthesis of Substituted Benzonorbornadienes from Cyclobutenediones." Synlett 1996, no. 02 (1996): 155–56. http://dx.doi.org/10.1055/s-1996-5351.
Full textLiebeskind, Lanny S. "Cyclobutenediones as precursors to quinones and cyclopentenones." Tetrahedron 45, no. 10 (1989): 3053–60. http://dx.doi.org/10.1016/s0040-4020(01)80131-9.
Full textLiebeskind, Lanny S., and Richard W. Fengl. "3-Stannylcyclobutenediones as nucleophilic cyclobutenedione equivalents. Synthesis of substituted cyclobutenediones and cyclobutenedione monoacetals and the beneficial effect of catalytic copper iodide on the Stille reaction." Journal of Organic Chemistry 55, no. 19 (1990): 5359–64. http://dx.doi.org/10.1021/jo00306a012.
Full textPeriasamy, Mariappan, та Mallesh Beesu. "Stereoselective γ-Olefination of Substituted Cyclobutenediones by Organocatalysis". Synlett 2011, № 19 (2011): 2834–40. http://dx.doi.org/10.1055/s-0031-1289879.
Full textZora, Metin, Baris Yucel, and N. Bekir Peynircioglu. "Coupling of ferrocenyl chromium carbene complex with cyclobutenediones." Journal of Organometallic Chemistry 656, no. 1-2 (2002): 11–17. http://dx.doi.org/10.1016/s0022-328x(02)01403-1.
Full textLiebeskind, Lanny S., and Jing Zhang. "Synthesis of quinolinoquinones and 1,2,3,4-tetrahydroquinolinoquinones via cyclobutenediones." Journal of Organic Chemistry 56, no. 22 (1991): 6379–85. http://dx.doi.org/10.1021/jo00022a031.
Full textPETASIS, N. A., and D. K. FU. "ChemInform Abstract: Synthesis of Substituted Benzonorbornadienes from Cyclobutenediones." ChemInform 27, no. 25 (2010): no. http://dx.doi.org/10.1002/chin.199625091.
Full textLIEBESKIND, L. S., and R. W. FENGL. "ChemInform Abstract: 3-Stannylcyclobutenediones as Nucleophilic Cyclobutenedione Equivalents. Synthesis of Substituted Cyclobutenediones and Cyclobutenedione Monoacetals and the Beneficial Effect of Catalytic Copper Iodide on the Stille Reaction." ChemInform 22, no. 8 (2010): no. http://dx.doi.org/10.1002/chin.199108147.
Full textSun, Lijun, and Lanny S. Liebeskind. "Construction of Highly-Substituted Aromatics Bearing Acyl Substituents Using Cyclobutenedione Technology: Vinylketene-Based Benzannulations Using 3-Acyl-4-(substituted amino)cyclobutenediones." Journal of Organic Chemistry 60, no. 25 (1995): 8194–203. http://dx.doi.org/10.1021/jo00130a018.
Full textLiebeskind, Lanny S., Richard W. Fengl, Kevin R. Wirtz, and Thomas T. Shawe. "An improved method for the synthesis of substituted cyclobutenediones." Journal of Organic Chemistry 53, no. 11 (1988): 2482–88. http://dx.doi.org/10.1021/jo00246a017.
Full textSchmidt, Arthur H., Timo Schreck, Ralf Rötz, and Sarah von Freytag-Loringhoven. "Oxokohlenstoffe und verwandte Verbindungen, 30 [1]. Über die Umsetzung von Quadratsäure mit Pyrazolinonen / Oxocarbons and Related Compounds, 30 [1]. On the Reaction of Squaric Acid with Pyrazolinones." Zeitschrift für Naturforschung B 61, no. 3 (2006): 311–19. http://dx.doi.org/10.1515/znb-2006-0311.
Full textMallesh, Beesu, and Periasamy Mariappan. "Reactive iron carbonyl reagents for conversion of alkynes to cyclobutenediones, cyclic imides and anhydrides via double carbonylation." Journal of Indian Chemical Society Vol. 90, Oct 2013 (2013): 1795–803. https://doi.org/10.5281/zenodo.5792043.
Full textFu, Nanyan, Annette D. Allen, Shinjiro Kobayashi, et al. "Structural Effects on Interconversion of Oxygen-Substituted Bisketenes and Cyclobutenediones." Journal of Organic Chemistry 73, no. 5 (2008): 1768–73. http://dx.doi.org/10.1021/jo702312t.
Full textBeesu, Mallesh, та Mariappan Periasamy. "ChemInform Abstract: Stereoselective γ-Olefination of Substituted Cyclobutenediones by Organocatalysis." ChemInform 43, № 15 (2012): no. http://dx.doi.org/10.1002/chin.201215043.
Full textLIEBESKIND, L. S., and J. ZHANG. "ChemInform Abstract: Synthesis of Quinolinequinones and 1,2,3,4-Tetrahydroquinolinequinones via Cyclobutenediones." ChemInform 23, no. 17 (2010): no. http://dx.doi.org/10.1002/chin.199217188.
Full textSUN, L., and L. S. LIEBESKIND. "ChemInform Abstract: Construction of Highly-Substituted Aromatics Bearing Acyl Substituents Using Cyclobutenedione Technology: Vinylketene-Based Benzannulations Using 3-Acyl-4-(substituted amino)cyclobutenediones." ChemInform 27, no. 18 (2010): no. http://dx.doi.org/10.1002/chin.199618051.
Full textRameshkumar, Chellappan, and Mariappan Periasamy. "Amine induced carbonylation of alkynes to cyclobutenediones using Fe3(CO)12." Tetrahedron Letters 41, no. 15 (2000): 2719–22. http://dx.doi.org/10.1016/s0040-4039(00)00247-1.
Full textPackard, Emma, David D. Pascoe, Jacques Maddaluno, Théo P. Gonçalves, and David C. Harrowven. "Organoytterbium Ate Complexes Extend the Value of Cyclobutenediones as Isoprene Equivalents." Angewandte Chemie 125, no. 49 (2013): 13314–17. http://dx.doi.org/10.1002/ange.201307193.
Full textPackard, Emma, David D. Pascoe, Jacques Maddaluno, Théo P. Gonçalves, and David C. Harrowven. "Organoytterbium Ate Complexes Extend the Value of Cyclobutenediones as Isoprene Equivalents." Angewandte Chemie International Edition 52, no. 49 (2013): 13076–79. http://dx.doi.org/10.1002/anie.201307193.
Full textBOTTARI, P. Q., and M. A. BATTISTE. "ChemInform Abstract: Cyclobutenediones as Versatile Four-Carbon Synthons in Organic Synthesis." ChemInform 29, no. 51 (2010): no. http://dx.doi.org/10.1002/chin.199851333.
Full textAllen, Annette D., and Thomas T. Tidwell. "Ring opening of cyclobutene-1,2-dione and 3-trimethylsilylcyclobutene-1,2-dione. Dimerization/decarbonylation of a bisketene to a ketenylbutenolide." Canadian Journal of Chemistry 77, no. 5-6 (1999): 802–5. http://dx.doi.org/10.1139/v99-040.
Full textPeriasamy, Mariappan, Amere Mukkanti, and D. Shyam Raj. "Novel Synthesis of Acyloxyferrole Complexes from Alkynes and Their Conversion to Cyclobutenediones." Organometallics 23, no. 3 (2004): 619–21. http://dx.doi.org/10.1021/om0341395.
Full textLiu, Ronghua, and Thomas T. Tidwell. "Aryl substituent effects on the thermal interconversion of cyclobutenediones and 1,2-bisketenes." Journal of the Chemical Society, Perkin Transactions 2, no. 12 (1996): 2757. http://dx.doi.org/10.1039/p29960002757.
Full textAllen, Annette D., Jim D. Colomvakos, Ian Egle, et al. "Kinetic and Theoretical Studies of Ring Closure of Unstabilized Bisketenes to Cyclobutenediones." Journal of the American Chemical Society 117, no. 28 (1995): 7552–53. http://dx.doi.org/10.1021/ja00133a032.
Full textXu, Simon, Benjamin R. Yerxa, Robert W. Sullivan, and Harold W. Moore. "Synthesis of substituted cyclobutenediones from 3-ethenyl-4-methoxy-cyclobutene-1,2-dione." Tetrahedron Letters 32, no. 9 (1991): 1129–32. http://dx.doi.org/10.1016/s0040-4039(00)92025-2.
Full textMingo, Pamela, Shijie Zhang та Lanny S. Liebeskind. "One-Step Synthesis of Substituted α-Pyrones from Cyclobutenediones and LithiatedO-Silyl Cyanohydrins". Journal of Organic Chemistry 64, № 6 (1999): 2145–48. http://dx.doi.org/10.1021/jo982271m.
Full textSun, Lijun, and Lanny S. Liebeskind. "2-(Alkylamino)-4-cyclopentene-1,3-diones via Addition of Imidoyl Lithiates to Cyclobutenediones." Journal of Organic Chemistry 59, no. 22 (1994): 6856–58. http://dx.doi.org/10.1021/jo00101a058.
Full textLiebeskind, Lanny S., Kenneth L. Granberg, and Jing Zhang. "A strategy for generalization of the regiospecific synthesis of substituted quinones from cyclobutenediones." Journal of Organic Chemistry 57, no. 16 (1992): 4345–52. http://dx.doi.org/10.1021/jo00042a009.
Full textXU, S., B. R. YERXA, R. W. SULLIVAN, and H. W. MOORE. "ChemInform Abstract: Synthesis of Substituted Cyclobutenediones from 3-Ethenyl-4- methoxycyclobutene-1,2-dione." ChemInform 22, no. 52 (2010): no. http://dx.doi.org/10.1002/chin.199152135.
Full textRameshkumar, Chellappan, and Mariappan Periasamy. "ChemInform Abstract: Amine-Induced Carbonylation of Alkynes to Cyclobutenediones Using Fe3(CO)12." ChemInform 31, no. 26 (2010): no. http://dx.doi.org/10.1002/chin.200026078.
Full textLiebeskind, Lanny S., and Jianying Wang. "Synthesis of substituted cyclobutenediones by the palladium catalyzed cross-coupling of halocyclobutenediones with organostannanes." Tetrahedron Letters 31, no. 30 (1990): 4293–96. http://dx.doi.org/10.1016/s0040-4039(00)97604-4.
Full textPeriasamy, Mariappan, Amere Mukkanti, and D. Shyam Raj. "Synthesis of Cyclobutenediones and Anhydrides from Alkynes Using the Fe(CO)5/Me3NO Reagent System." Organometallics 23, no. 26 (2004): 6323–26. http://dx.doi.org/10.1021/om049429f.
Full textChao, Jianhua, Arthur G. Taveras, Jianping Chao, et al. "C(4)-alkyl substituted furanyl cyclobutenediones as potent, orally bioavailable CXCR2 and CXCR1 receptor antagonists." Bioorganic & Medicinal Chemistry Letters 17, no. 13 (2007): 3778–83. http://dx.doi.org/10.1016/j.bmcl.2007.04.016.
Full textZhang, Dawei, Isidro Llorente, and Lanny S. Liebeskind. "Versatile Synthesis of Dihydroquinolines and Quinoline Quinones Using Cyclobutenediones. Construction of the Pyridoacridine Ring System." Journal of Organic Chemistry 62, no. 13 (1997): 4330–38. http://dx.doi.org/10.1021/jo970039v.
Full textPeriasamy, Mariappan, Chellappan Rameshkumar, and Ukkiramapandian Radhakrishnan. "Novel Reaction of the [HFe3(CO)11]− reagent with alkynes: A new synthesis of cyclobutenediones." Tetrahedron Letters 38, no. 41 (1997): 7229–32. http://dx.doi.org/10.1016/s0040-4039(97)01677-8.
Full textSUN, L., and L. S. LIEBESKIND. "ChemInform Abstract: 2-(Alkylamino)-4-cyclopentene-1,3-diones via Addition of Imidoyl Lithiates to Cyclobutenediones." ChemInform 26, no. 20 (2010): no. http://dx.doi.org/10.1002/chin.199520084.
Full textLIEBESKIND, L. S., K. L. GRANBERG, and J. ZHANG. "ChemInform Abstract: A Strategy for Generalization of the Regiospecific Synthesis of Substituted Quinones from Cyclobutenediones." ChemInform 23, no. 51 (1992): no. http://dx.doi.org/10.1002/chin.199251164.
Full textMingo, Pamela, Shijie Zhang та Lanny S. Liebeskind. "ChemInform Abstract: One-Step Synthesis of Substituted α-Pyrones from Cyclobutenediones and Lithiated O-Silyl Cyanohydrins." ChemInform 30, № 29 (2010): no. http://dx.doi.org/10.1002/chin.199929137.
Full textLIEBESKIND, L. S., and J. WANG. "ChemInform Abstract: Synthesis of Substituted Cyclobutenediones by the Palladium-Catalyzed Cross-Coupling of Halocyclobutenediones with Organostannanes." ChemInform 22, no. 33 (2010): no. http://dx.doi.org/10.1002/chin.199133132.
Full textIwata, Shin, Toshiyuki Hamura, and Keisuke Suzuki. "Siloxy(trialkoxy)ethene undergoes regioselective [2+2] cycloaddition to ynones and ynoates en route to functionalized cyclobutenediones." Chemical Communications 46, no. 29 (2010): 5316. http://dx.doi.org/10.1039/c0cc00883d.
Full textBiju, Purakkattle, Arthur G. Taveras, Michael P. Dwyer та ін. "Fluoroalkyl α side chain containing 3,4-diamino-cyclobutenediones as potent and orally bioavailable CXCR2–CXCR1 dual antagonists". Bioorganic & Medicinal Chemistry Letters 19, № 5 (2009): 1431–33. http://dx.doi.org/10.1016/j.bmcl.2009.01.033.
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