English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We report first the complete study of the reactions of [CpMo(CO) 2 ] 2  (Mo≡Mo) (1, Cp = η 5 -C 5 H 5 ) with salt-free phosphorus ylides Ph 3 P=CHR (2, Ph = C 6 H 5 ; R = H (2a), CH 3  (2b), C 3 H 7  (2c), C 6 H 5  (2d)) and with the Nal-adducts of the ylides Ph 3 P=CMe 2  (Me = CH 3 ), PhMe 2 P=CH 2  and (PhO) 3 P=CH 2 . With 2, products of the type Cp(CO) 2 LMo-MoL(CO) 2 Cp (7, L = ylide) were obtained, and the salt adducts gave addition compounds of the type Cp(CO) 2 LMo-MoL(CO) 2 Cp-2NaI (12, L = ylide). These very reactive products represent novel bisphosphonioalkyl complexes, and were characterized by IR, mass and  1 H NMR spectrometry. The reaction of 1 with hexaphenylcarbodiphosphorane, C(PPh 3 ) 2 , leads to a novel double addition product, Cp 2 Mo 2 (CO) 4 [C(PPh 3 ) 2 ] 2  (14). Some reactions of compounds 7, 12 and 14 were also studied; 7d (L = CHPh -PPh 3 ) reacts with NaNH 2  yielding ammonia and the disodium salt of the novel dianionic complex [CpMo(CO) 2 (CPh-PPh 3 )] 2  2-  (15); 7a (L = CH 2 -PPh 3 ) reacts with CH 3 I forming CpMo(CO) 3 CH 3  and traces of CpMo(CO) 2 (PPh 3 )I; all compounds of types 7,12 and 14 react with adsorbents (Silica-gel, Al 2 O 3 , etc.); thus chromatography is impossible, even under strict protection from air and humidity. A study of the processes occurring during chromatography under various conditions and the resulting products are also reported and discussed.

zeitschrift für naturforschung b

Über die Reaktionen von Phosphoryliden mit homodinuklearen Organometallverbindungen des Molybdän und Wolfram / On the Reaction of Phosphorylides with Homodinuclear Organometallic Compounds of Molybdenum and Tungsten