1026772-12-2Relevant academic research and scientific papers
Formation of four conjugated osmacyclic species in a one-pot reaction
Gong, Lei,Lin, Yumei,Wen, Ting Bin,Zhang, Hong,Zeng, Birong,Xia, Haiping
, p. 2584 - 2589 (2009/02/02)
Treatment of HC≡CCH(OH)CH=CH2 with OsCl 2(PPh3)3 in THF produced the η2-allyl alcohol osmacycle OsCl2(PPh3) 2(CH=C(PPh3)CH(OH)CH=CH2) (2) with poor solubility and low stability, which underwent a ligand substitution reaction with PMe3 to give the more stable analogue [OsCl-(PMe 3)3(CH=C(PPh3)CH(OH)CH=CH2)]Cl (3). Heating the suspension of 2 in CH2Cl2 led to the formation of four interesting conjugated osmacycles in one pot, including the osmabenzene OsCl2(PPh3)2(CHC(PPh3)CHCHCH) (4), the cyclic osmium η2-allene complex OsCl2(PPh 3)2(CH=C(PPh3)CH=C=CH2) (5), the osmafuran OsCl2(PPh3(CHC(PPh3)C(CH2CH 3)O) (6), and the α,β-unsaturated ketone complex OsCl 2(PPh3)2(CH=C(PPh3)C(O)C=CH 2) (7). All of the four products could also be produced in higher yield under appropriate conditions.
