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'Phosphane' in keywords Facet   Publication Year 1993  [X]
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1Author    H. Einrich, Uwe Lay, M. Ichael Leise, Laszlo ZsolnaiRequires cookie*
 Title    Propargyl-, Allenyl-und Alkinyl  
 Abstract    A norganisch-C hem isches In stitut der U niversität, Im N euenheim er Feld 270, D-W -6900 H eidelberg 1 Z. N atu rfo rsch . 48b, 2 7 -3 6 (1993); eingegangen am 23. M ärz 1992 P ropargyl, Allenyl and Alkynyl P hosphanes, C o o rd in atio n A bility, Isom erization, C rystal S tructure T he synthesis and reactivity o f non-co o rd in ated an d c o o rd in ated pro p arg y l pho sp h an es are discussed. T he isom erization o f the propargyl unit in (R)P(C 1)(C H 2C = C H) (3) (R = 2,4,6-'B u3C 6H 20) in the presence o f N E t3 yields the^ allenyl su b stitu ted p ro d u ct (R)P(C1)(CH = C = C H 2) (4). H ow ever, in the presence o f H N E t2 the dim ethylenecyclobutane 7 is form ed. D ifferent synthetic pathw ays for the p rep aratio n o f L "M P(Ph)m(C H 2C = C H)3 m com plexes (m = 2: L"M = (//5-C 5H 5)(C O)2M n: 10a; L"M = (C O)5Cr: 10 b; m = 1: L"M = (^5-C 5H 5)(C O)2M n: 13a; L"M = (?/5-C 5H 4M e)(C O)2M n: 13b) are described. T he synthesis o f the alkynyl substituted phosp h an e com pounds L"M P(Ph)m(C = C R)3 m (m = 2: R = Ph, LnM = (/;5-C 5H 5)(C O)2M n: 20a; L"M = (C O)5Cr: 20b; R = "Bu, L"M = (C O)5Cr: 20c; m = 1: R = Ph, L"M = (/75-C 5H 5)(C O)2M n: 22) was also possible. The reaction o f (>/5-C 5H 4M e)(C O),M n P P h (C H ,C = C H)2 (13 b) w ith C o 2(C O)8 affords in high yields (V5-C 5H 4M e)(C O)2M nPPh[(?/2-C H 2C = C H)C o 2(C O)6]2 (15). All new co m pounds have been characterized by analytical a n d spectroscopic d a ta (IR , 'H -, 13C { 'H } -, 31P { 'H } -N M R , M S) an d (;/5-C 5H 5)(C O)2M n P (P h)(C H 2C = C H)2 (13a) by X -ray analysis. 
  Reference    (Z. Naturforsch. 48b, 27 [1993]) 
  Published    1993 
  Keywords    Phosphane, Synthese, Reaktivität, Isomerisierung* Propargyl-, Allenyl-and A lkynyl-Phosphanes, Synthesis, R eactivity, Isom erization 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-0027.pdf 
 Identifier    ZNB-1993-48b-0027 
 Volume    48