with CO substitution, to give (CO)3(py)Re(κ2-OC(OMe)C(CHCEt2)C(OEt)) (4). A mechanism is proposed for these reactions. The sulfonium ylides Me2SCHC(O)Ph and Me2SC(CN)2 (Me2SCRR′) react with 1a in acetonitrile at reflux temperature by nucleophilic addition of the ylide to the ReC(Me) carbon, loss of Me2S, and rearrangement to a rhenafuran-type structure to yield (CO)4Re(κ2-OC(OMe)C(C(Me)CRR′)C(OEt))
进一步调查到rhenacyclobutadiene络合物的
化学性质(CO)4的Re(η 2 -C(R)C(CO 2 Me)的C(X))(1:R = Me中,X = OET(1A),O(CH 2)3 CCH(1B),净2(1C); R =切特2,X = OET(1D); R =苯基,X = OET(1E))的报告。的反应1与炔在
甲苯的回流温度并在任光
化学条件下或在屈服的PdO环取代的η存在环境温度5 -cyclopentadienylrhenium三羰基复合物,2。对称炔[R ' CCR ' (R ' =苯基中,Me,CO 2 Me)的得到五取代的配合物(η 5 -C 5(ME)(CO 2 Me)的(OET)(PH)(PH))重新(CO)3(2D),(η 5 -C 5(ME)(CO 2 Me)的(OET)(ME)(ME))的Re(CO)3(2E),(η 5 -C 5(Me)中(CO 2 Me)的(OET)(CO