溴代卓酚酮基础的双查尔酮的合成（英文）

卓酚酮基础的双查尔酮3,3′-{(1E,1′E)-1,4-苯撑双[(1E)-3-羰基并-1-烯-1,3-二基]}双卓酚酮(1)与2.1倍或4.2倍物质的量的液溴在乙酸溶剂中直接进行溴化反应.该溴化反应选择性的发生在卓酚酮环上,得到相应的7-溴卓酚酮(2)和5,7-二溴卓酚酮基础的双查尔酮(3),收率分别为81%和73%,其结构通过波谱数据和元素分析得以证实.     

3-取代酚酮5位偶联产物的溴氧化成环反应

报道了采用溴氧化3-异丙烯基(艹卓)酚酮和3-肉桂酰基(艹卓)酚酮合成杂环并(艹卓)酮化合物的新方法。3-异丙烯基(艹卓)酚酮5位偶联产物1a～1f和3-肉桂酰基(艹卓)酚酮5位偶联产物3a～3d分别在吡啶介质中与过量溴作用生成5-取代苯偶氮基-7-溴-3-甲基-8-氢环庚并呋喃-8-酮2a～2f和6-取代苯偶氮基-2-苯基-8-溴-4,9-二氢环庚并吡喃-4,9-二酮4a～4d。     

酮和酚酮化合物合成新进展

对艹卓酮和艹卓酚酮化合物最新合成进展从亲电取代反应、缩合反应和还原反应等几个方面进行了综述。参考文献３４篇     

多乙酰氧基烷基卓酮的合成

各种溴代的烷基卓酚酮的乙酸酯用乙酸酐/三氟乙酸酐/乙酸(以下简称ATA)醋解可得高收率的相应的多乙酰氧基烷基卓酮,后者经稀酸水解几乎定量地得多羟基烷基卓酮。部分多乙酰氧基卓酮对肺癌A~5~4~9和上皮细胞癌显出抑制活性。     

苯乙烯基取代的缩杂环(艹卓)酮类化合物的合成

本文研究了3-(3,4,5-三甲氧基)肉桂酰基(艹卓)酚酮和3-(3,4-亚甲二氧基)肉桂酰基(艹卓)酚酮与盐酸缩杂环(艹卓)酮类化合物,并用光谱分析和元素分析证明了它们的结构。     

3-取代卓酚酮5位偶联产物的溴氧化成环反应

报道了采用溴氧化3-异丙烯基卓酚酮和3-肉桂酰基卓酚酮合成杂环并卓酮化合物的新方法。3-异丙烯基卓酚酮5位偶联产物1a-1f和3-肉桂酰基卓酚酮5位偶联产物3a-3d分别在吡啶介质中与过量溴作用生成5-取代苯偶氮基-7-溴-3-甲基-8-氢环庚并呋喃-8-酮2a-2f和6-取代苯偶氮基-2-苯基-8-溴-4,9-二氢环庚并吡喃-4,9-二酮4a-4d。     

查尔酮衍生物E-2-(甲氨基)-7-(3-(吡啶基)丙烯酰基)卓酮的合成(英文)

以2-乙酰基-7-(甲氨基)卓酮(1)为原料,经由与各种吡啶醛的Claisen-Schmidt缩合反应得到查尔酮衍生物E-2-(甲氨基)-7-(3-(吡啶基)丙烯酰基)卓酮(2～5).全部合成产物均为新化合物,未见文献报道;其结构均由红外光谱分析、1H核磁共振、质谱及元素分析得以证实.     

含卓酚酮基团的四乙酰基半乳糖苷的合成

环庚三烯酚酮;含卓酚酮基团的四乙酰基半乳糖苷的合成;Koenigs-Knorr糖基化反应     

卓酚酮基础的查尔酮衍生物(E)-5-溴-3-(3-芳基丙烯酰基)卓酚酮的合成(英文)

3-乙酰基-5-溴-卓酚酮与不同取代的苯甲醛类化合物通过Claisen-Schmidt缩合反应合成一系列结构新颖的卓酚酮取代的查尔酮类衍生物。该方法使用5%KOH溶液作为催化剂,50%甲醇水溶液作为溶剂,具有操作简便、反应条件温和、收率高等优点。所合成标题化合物的结构经IR、1H NMR、MS和元素分析得以证实。     

缩杂环卓酮化合物的合成

本文报道Friedlaender反应在卓酮化学中的应用, 合成了喹啉基取代的卓酮化合物。     

BOOK REVIEWS

Book reviewed in this article:
Chemical and Biochemical Applications of Lasers. Volume II. Edited by C. B radley M oore
Laser Spectroscopy III, Springer Series in Optical Spectroscopy. Volume 7. Edited by J. L. H all and J. L. C arlsten
Photosynthesis. Second Edition, D. O. H all and K. K. R ao
The Amphibian Visual System. Edited by K atherine V. F ite
The Physiology and Biochemistry of Seed Dormancy and Germination. Edited by A. A. K han
Phytochrome and Plant Growth. Studies in Biology NO. 68. Edited by R. E. K endrick and B. F rankland
The Science of Photobiology. Edited by K endric C. S mith
Photosensitized Reactions, By M. K oizumi , S. K ato , N. M ataga , T. M atsuura and Y. U sui
Bioenergetics of Membranes, Edited by L. P acker , G. C. P apageorgiou and A. T rebst     

Kinetics of solid state thermal decomposition reactions

The author wishes to thank Prof. C. G. R. Nair, Dr. V. R. Gowarikar, Mr. M. R. Kurup and Dr. K. V. C. Rao for their encouragements. Thanks are due to Prof. P. M. Madhusudanan and Dr. K. Krishnan for helpful discussions and to Director, VSSC for the kind permission to publish this work.     

Bemerkungen zu den „Viskositätstheorien“ von K. C. Sen,N. R. Dhar und Mitarbeitern

Ohne Zusammenfassung K. C. Sen, Koll.-Zeitschr.38, 253 (1926); D. N. Chakravarti u. N. R. Dhar, Journ.Phys. Chem.29, 1556 (l925);30, 1646 (1926); Zeitschr. f. anorg. Chem.152, 393 (1926); D. N. Chakravarti u. N. R. Dhar, Koll.-Zeitschr.42, 124 (1927); N. R. Dhar, D. N. Chakravarti u. M.N.Chakravarti, Koll.-Zeitschr.44 225 (1928).     

Book Reviews

Book reviewed in this article:
The Effects of Constant Light on Visual Processes. Edited by T. P. W illiams and B. N. B aker . Plenum Press, New York, 1980. 455 pp. $45.00.
Radiation Biology and Chemistry: Research Developments. Edited by H. E. E dwards , S. N avaratnam , B. J. P arsons and G. O. P hillips . Elsevier Scientific, Amsterdam, 1979. 505 pp. $78.00     

BOOK REVIEWS

Book reviewed in this article:
Chemistry of Atmospheres, An introduction to the chemistry of the atmospheres of Earth, the planets and their satellites .Edited by Richard P. Wayne
Advances in Photochemistry , vol.13 Edited by D. H. Volman, K. Gollnick and G. S. Hammond.
Multiple Photon Infrared Laser Photophysics and Photochemistry . V. N. Bagratashvili, V. S. Leto-khov, A. A. Makarov and E. A. Ryabov.     

BOOK REVIEW

Structure and Bonding , Volume 41, Edited by J. D. D unitz , J. B. G oodenough , P. H emmerich , J. A. I bers , C. K. J ørgensen , J. B. N eilands , D. R einen and R. J. P. W illiams .     

Electrophoresis of spheres with uniform zeta potential in a gel modeled as an effective medium

The effective medium model [H.C. Brinkman, Appl. Sci. Res. A 1 (1947) 27] is used to calculate the electrophoretic mobility of spheres in a gel with uniform zeta potential on their surface. In the absence of a gel support medium or ion relaxation (the distortion of the ion atmosphere from equilibrium due to the presence of an external flow or electric field), our results reduce to those of Henry [D.C. Henry, Proc. R. Soc. London Ser. A 133 (1931) 106]. The relaxation effect can be ignored for weakly charged particles, or for particles with low absolute zeta potential. Using a procedure similar to that employed by O'Brien and White [R.W. O'Brien, L.R. White, J. Chem. Soc. Faraday Trans. 2 74 (1978) 1607], the relaxation effect is accounted for in the present work and results are presented over a wide range of particle sizes, gel concentrations, and zeta potentials in KCl salt solutions. In the limit of no gel, our results reduce to those of earlier investigations. The procedure is then applied to the mobility of Au nanoparticles in agarose gels and model results are compared to recent experiments [D. Zanchet, C.M. Micheel, W.J. Parak, D. Gerion, S.C. Williams, A.P. Alivisatos, J. Phys. Chem. B 106 (2002) 11758; T. Pons, H.T. Uyeda, I.L. Medintz, H. Mattoussi, J. Phys. Chem. B 110 (2006) 20308]. Good agreement with experiment is found for reasonable choices of the model input parameters.     

A study of sorption and decomposition of ozone on microfibrous filtering materials

Decomposition of ozone on commercial and pilot filtering microfibrous materials based on polymers, glass fibers, and carbonized polymeric fibers was studied. Original Russian Text A.I. Klimuk, L.A. Obvintseva, A.D. Shepelev, V.L. Kuchaev, M.P. Dmitrieva, E.N. Ushakova, A.K. Avetisov, 2008, published in Zhurnal Prikladnoi Khimii, 2008, Vol. 81, No. 4, pp. 593–597.     

Mass selective gas phase study of ClO, OClO, ClOO and ClAr by anion-ZEKE-photoelectron spectroscopy

Anion-ZEKE-photoelectron spectra of ClO-, OClO-, ClOO- and the van der Waals cluster ArCl- have been measured. Refined or new values for the electron affinity of ClO, OClO and ClOO have been found. The peak positions in these spectra are in very good agreement with former ClO- and OClO- anion-photoelectron spectra (K. M. Gilles, M. L. Polak and W. C. Lineberger, J. Chem. Phys., 1992, 96, 8012) and a recent ArCl- anion-ZEKE spectrum (T. Lenzer, I. Yourshaw, M. Furlanetto, G. Reiser and D. Neumark, J. Chem. Phys., 1992, 110, 9578). The higher resolution of our anion-ZEKE-photoelectron spectrum of OClO- led to a refined assignment of the corresponding anion-photoelectron spectrum. In addition, a strong difference in the relative intensities of the vibrational peaks has been found in the anion-ZEKE-spectrum of OClO- in comparison with the anion-photoelectron spectrum. For the first time, mass selective spectroscopic information has been obtained for ClOO. The strong similarity to the ArCl- spectrum indicates a weakly bound van der Waals cluster Cl.O2. Binding energies of the anion, neutral ground and neutral excited state could be deduced. These are in good agreement with the electron affinities of Cl and ClOO, but differ from theoretical values (K. A. Peterson and H. J. Werner, J. Chem. Phys., 1992, 96, 8948) by a factor of 4.5 and from thermochemically determined values (J. M. Nicovich, K. D. Kreutter, C. J. Shackelford and P. H. Wine, Chem. Phys. Lett., 1991, 179, 367 and S. Baer, H. Hippler, R. Rahn, M. Siefke, N. Seitzinger and J. Troe, J. Chem. Phys., 1991, 95, 6463) by a factor of 9.