18636-54-9Relevant articles and documents
A novel reaction of titanacyclopentenes and aldehydes with or without Lewis acids
Hu, Qiaoshu,Li, Dongzhen,Zhang, Huijun,Xi, Zhenfeng
, p. 6167 - 6170 (2007)
Oxatitanacyclopentenes were prepared in high yields from the reaction of aldehydes with titanacyclopenetens via substitution of ethylene. No insertion product was obtained in this reaction. The combination of alkynes and aldehydes played an important role in the successive formation of oxatitanacyclopentenes. Some oxatitanacyclopentenes are very stable and can be purified using column chromatography. The cooperation between Ti and LA led to very different results from that between Zr and LA.
Palladium-Catalyzed Intramolecular Trost–Oppolzer-Type Alder–Ene Reaction of Dienyl Acetates to Cyclopentadienes
Bankar, Siddheshwar K.,Singh, Bara,Tung, Pinku,Ramasastry
supporting information, p. 1678 - 1682 (2018/02/06)
A new approach to the synthesis of highly substituted cyclopentadienes, indenes, and cyclopentene-fused heteroarenes by means of the Pd-catalyzed Trost–Oppolzer-type intramolecular Alder–ene reaction of 2,4-pentadienyl acetates is described. This unpreced
The synthesis of 1,2-diarylindenes via DDQ-mediated dehydrogenative intramolecular cyclization
Li, Yi,Cao, Li,Luo, Xiaoyan,Deng, Wei-Ping
, p. 5974 - 5979 (2015/03/30)
A direct DDQ-mediated dehydrogenative intramolecular cyclization of (Z)-1,2,3-triaryl substituted propylenes promoted by Cu(OAc)2 was developed, providing 1,2-diarylindene derivatives in moderate to good yields (up to 92%) under mild conditions
