نتایج جستجو برای: matteson
تعداد نتایج: 83 فیلتر نتایج به سال:
Short and highly stereoselective total syntheses of the sesquilignan natural product tatanan A and its C3 epimer are described. An assembly-line synthesis approach, using iterative lithiation-borylation reactions, was applied to install the three contiguous stereocenters with high enantio- and diastereoselectivity. One of the stereocenters was installed using a configurationally labile lithiate...
Jin Zhang, Chongyu Ren, Ling Chen, Manuel F. Navedo, Laura K. Antos, Stephen P. Kinsey, Takahiro Iwamoto, Kenneth D. Philipson, Michael I. Kotlikoff, Luis F. Santana, W. Gil Wier, Donald R. Matteson,* and Mordecai P. Blaustein* Departments of Physiology and Medicine, University of Maryland School of Medicine, Baltimore, Maryland; Department of Physiology and Biophysics, University of Washington...
Impaction of foreign bodies in the gullet is of frequent occurrence; but fatal perforation of the aorta by such bodies is an extremely rare complication. In a review of 602 cases of foreign bodies in the oesophagus by Matteson (1949) no such complication has been recorded. So far as may be gathered from the Indian Medical Literature, no case similar to ours has been previously reported and henc...
References 1. Robert DR, Laughlin LL, Hshieh P, Legters LJ. DDT, global strategies, and a malaria control crisis in South America. Emerg Infect Dis 1997:3:295-302. 2. Wirth DF, Cattani J. Winning the war against malaria. Technology Review 1997;Aug/Sep:52-61. 3. World Resources Institute, United Nations Environment Programme, United Nations Development Programme, the World Bank. World Resources ...
The Matteson reaction involves treatment of a chiral boronic ester with (dichloromethyl)lithium in the presence ZnCl2 which leads to an ?–chloroboronic very high diastereoselectivity. origin selectivity has now been investigated using modern computational analysis. explanation for was previously based on steric repulsions transition state but new study identified novel Cl··H electrostatic inter...
Morphemes often behave differently phonologically in ways that cannot be explained purely phonologically: one morpheme undergoes or triggers a process while another morpheme fails to undergo or trigger that process, even though the two are in all relevant respects indistinguishable. Piro syncope (Matteson 1965, Kisseberth 1970, Lin 1997) provides an example of such morpheme-specific phonology. ...
1. Woywodt A, Haubitz M, Haller H, Matteson EL: Wegener’s granulomatosis. Lancet 367: 1362–1366, 2006 2. Klinger H: Grenzformen der Periarteriitis Nodosa. Frankf Z Pathol 42: 455–480, 1931 3. Wegener F: Ueber generalisierte septische Gefäßerkrankungen. Verh Deut Pathol Ges 29: 202–210, 1936 4. Wegener F: Ueber eine eigenartige rhinogene Granulomatose mit besonderer Beteiligung des Arteriensyste...
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