TY - JOUR
T1 - Isolation of ruthenium-indoline and -indole zwitterion complexes
T2 - Insight into the metal-induced cyclization of aniline-tethered alkynes and strategy to lower the activation barrier of metal-vinylidene formation
AU - Yeung, Chi-Fung
AU - Chung, Lai-Hon
AU - Lo, Hoi-Shing
AU - Chiu, Chun-Hong
AU - Cai, Jialin
AU - Wong, Chun-Yuen
PY - 2015/5/26
Y1 - 2015/5/26
N2 - Isolation of the first examples of Ru(II)-indoline and -indole zwitterion complexes derived from reactions between [Ru([14]aneS4)Cl2] ([14]aneS4 = 1,4,8,11-tetrathiacyclotetradecane) and aniline-tethered alkynes has been achieved. Mechanistic studies regarding the selectivity between a "vinylidene-involving pathway" and a "direct nucleophilic ring closure mechanism" for these reactions have been conducted experimentally and theoretically. Employment of 1,2-silyl shift as a strategy to lower the activation barrier for the formation of Ru-vinylidene species has also been proved to be successful.
AB - Isolation of the first examples of Ru(II)-indoline and -indole zwitterion complexes derived from reactions between [Ru([14]aneS4)Cl2] ([14]aneS4 = 1,4,8,11-tetrathiacyclotetradecane) and aniline-tethered alkynes has been achieved. Mechanistic studies regarding the selectivity between a "vinylidene-involving pathway" and a "direct nucleophilic ring closure mechanism" for these reactions have been conducted experimentally and theoretically. Employment of 1,2-silyl shift as a strategy to lower the activation barrier for the formation of Ru-vinylidene species has also been proved to be successful.
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84930658788&origin=recordpage
U2 - 10.1021/acs.organomet.5b00211
DO - 10.1021/acs.organomet.5b00211
M3 - RGC 21 - Publication in refereed journal
SN - 0276-7333
VL - 34
SP - 1963
EP - 1968
JO - Organometallics
JF - Organometallics
IS - 10
ER -