1,721,011 research outputs found
Idroformilazione Asimmetrica di Stirene con Catalizzatori Contenenti Fosfine Atropoisomeriche
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Electrophilic attack on [Fe(allyl)2Ì CO)2Ì '■ occurrence of a 16 electron Fe(II) Complex
No full textSynthesis of three- and six-arms polymers via living controlled free radical polymerisation
No full textThree new polyfunctional TEMPO-based initiators have been synthesised by reaction of some mesitylene cores and 2,2,6,6-tetramethyl-1-(2-hydroxy-1-phenylethoxy)-piperidine. They have been employed in the living/controlled radical polymerisation of styrene to provide three- and six-arm star macromolecules. These polymers have molecular weight ranging from 6000 to 11000 g/mol and narrow molecular weight distributions (PD < 1.3). Cleavage of the link between the core and the arms was achieved, using a two-step sequence implying the preliminary removal of the TEMPO chain ends followed by catalytic hydrogenolysis. The dimensions of the individual arms so obtained closely match the values expected from the styrene/initiator molar ratio in the polymerisation feed. (C) 2001 Elsevier Science Ltd. All rights reserved
PREPARATION OF BIS(ETA-3-ALLYL)(TETRACYANOETHYLENE)PLATINUM AND ITS REACTION WITH TRIPHENYLPHOSPHINE LEADING TO THE ADDITION OF BOTH ALLYL GROUPS TO TETRACYANOETHYLENE
No full textTETRACYANOETHYLENE ADDITION TO FE(ALLYL)2(CO)2 - OCCURRENCE OF A 16-ELECTRON FE(II) COMPLEX
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Palladium and Platinum Complexes of Alpha-ketoesters - Crystal-structure of Trans-[pt(p(c6h11)3)2(h)(oc=chc(me)(cooet)oco)]
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