Organometallic Macrocyclic Chemistry. 6.1 Chelate-Assisted Macrocyclization of 4,7,10-Trithiatrideca-2,11-diyne
摘要:
The diyne 4,7,10-trithiatrideca-2,11-diyne (TTDD) reacts smoothly at room temperature with [Ru(CO)(2)(PPh3)(3)] to form [Ru(COYPPh3){eta(4)-S(C2H4SCCMe)(2)CO-kappaS}], a cyclopentadienone complex in which the unique sulfur atom is also coordinated to the metal but may be displaced by dppe to provide[Ru(CO)(dppe){eta(4)-S(C2H4SCCMe)(2)CO}]. In contrast, 2,8-decadiyne fails to cyclize even at elevated temperatures, implicating thioether coordination in the mechanism of TTDD macrocyclization.
Organometallic Macrocyclic Chemistry. 6.1 Chelate-Assisted Macrocyclization of 4,7,10-Trithiatrideca-2,11-diyne
摘要:
The diyne 4,7,10-trithiatrideca-2,11-diyne (TTDD) reacts smoothly at room temperature with [Ru(CO)(2)(PPh3)(3)] to form [Ru(COYPPh3){eta(4)-S(C2H4SCCMe)(2)CO-kappaS}], a cyclopentadienone complex in which the unique sulfur atom is also coordinated to the metal but may be displaced by dppe to provide[Ru(CO)(dppe){eta(4)-S(C2H4SCCMe)(2)CO}]. In contrast, 2,8-decadiyne fails to cyclize even at elevated temperatures, implicating thioether coordination in the mechanism of TTDD macrocyclization.