6072-57-7Relevant articles and documents
Nickel-Catalyzed Ring Expansion of Cyclobutanones towards Indanones
Chen, Tengyun,Wu, Yunkai,Han, Peilin,Gao, Jiqiang,Wu, Yuanqi,Zhao, Jinbo,Liang, Haotian,Liu, Yongsheng,Liu, Yu
, (2022/01/13)
Despite recent advances in catalytic ring-opening/cross-coupling process of o-halogen tethered phenylcyclobutanones with other partners, single-component ring expansion of such precursors towards 3-methylindanones has not been disclosed. We present herein a nickel catalyzed C?C bond reconstruction sequence of o-bromophenylcyclobutanones using H2O as hydrogen donor, leading to a series of indanones, which can be further converted into other benzene-fused cyclic compounds.
Exploring the synthetic potential of a marine transaminase including discrimination at a remote stereocentre
Schwarz, Maria,Murphy, Edel J.,Foley, Aoife M.,Woods, David F.,Castilla, Ignacio Abreu,Reen, F. Jerry,Collins, Stuart G.,O'gara, Fergal,Maguire, Anita R.
supporting information, p. 188 - 198 (2021/01/18)
The marine transaminase, P-ω-TA, can be employed for the transamination from 1-aminotetralins and 1-aminoindanes with differentiation of stereochemistry at both the site of reaction and at a remote stereocentre resulting in formation of ketone products with up to 93% ee. While 4-substituents are tolerated on the tetralin core, the presence of 3- or 8-substituents is not tolerated by the transaminase. In general P-ω-TA shows capacity for remote diastereoselectivity, although both the stereoselectivity and efficiency are dependent on the specific substrate structure. Optimum efficiency and selectivity are seen with 4-haloaryl-1-aminotetralins and 3-haloaryl-1-aminoindanes, which may be associated with the marine origin of this enzyme. This journal is
One-pot multicomponent synthesis and antimicrobial evaluation of novel tricyclic indenopyrimidine-2-amines
Kaur, Navjot,Singh, Pratibha,Kaur, Pawandeep,Yadav, Ajar Nath,Singh, Karan
, p. 3622 - 3631 (2020/08/19)
The synthesis of novel tricyclic indenopyrimidine-2-amines from 3,3-dimethyl-/3-methyl-2H-indanones has achieved by base-catalyzed one-pot three-component reaction. The desired products are formed within 10 hours after addition at reflux temperature. This