124300-58-9Relevant articles and documents
Highly regioselective and diastereodivergent aminomethylative annulation of dienyl alcohols enabled by a hydrogen-bonding assisting effect
Huang, Hanmin,Huang, Yao,Liu, Song,Yan, Xuyang,Yu, Bangkui,Zou, Suchen
, p. 2317 - 2323 (2022/03/14)
A ligand-controlled palladium-catalyzed highly regioselective and diastereodivergent aminomethylative annulation of dienyl alcohols with aminals has been established, which allows for producing either cis- or trans-disubstituted isochromans in good yields with complete regioselectivity and good to excellent diastereoselectivity. Moreover, the chiral cis-products were also obtained in good yields with up to 94% ee by using a chiral phosphinamide as the ligand. Mechanistic studies revealed that the hydroxyl group plays a key role in facilitating the Pd-catalyzed Heck insertion regioselectively taking place across the internal CC bond of conjugated dienes. This journal is
Ruthenium-catalyzed transformation of 3-benzyl but-1-ynyl ethers into 1,3-dienes and benzaldehyde via transfer hydrogen
Yeh, Kuo-Liang,Liu, Bo,Lai, Yen-Ting,Li, Chia-Wen,Liu, Rai-Shung
, p. 4692 - 4694 (2007/10/03)
TpRuPPh3(CH3CN)2PF6 catalyzed the transformation of various 3-benzyl but-1-ynyl ethers into dienes and benzaldehyde at a catalyst loading of 5 mol %. This process represents an atypical pattern of transfer hydrogenation. This catalytic reaction can be applied to various derivatives of 2-ethynyl tetrahydrofurans and pyrans to cleave their ether rings and gives diene and tethered aldehyde functionalities, respectively.
Intramolecular reactions of α-azidocinnamates with 4-substituted 1,3-dienes
Vogel,Delavier,Jones,Doring
, p. 1409 - 1412 (2007/10/02)
The synthesis of new 8,9-benzo-6-aza-bicyclo[3.2.2]nona-3.6.8-trienes 14 by intramolecular reaction of α-azidocinnamates 9 with alkyl- and phenylsubstituted ortho-butadienyl side chains is reported, as is the formation of the new 1-aza-2-carbomethoxy-7,8-benzo-tricyclo[4.30.02,9]nona-4,7-diene 15.