15547-89-4Relevant articles and documents
PREPARATION AND REACTIVITY OF λ6-VERATROLEMANGANESE TRICARBONYL TETRAFLUOROBORATE
Pearson, A. J.,Richards, I. C.
, p. C41 - C44 (1983)
Reaction of pentacarbonylmanganese tetrafluoroborate with veratrole (1,2-dimethoxybenzene) affords η6-veratrolemanganese tricarbonyl tetrafluoroborate in 66percent yield.This complex does not react satisfactorily with alkyllithium compounds, but it does undergo highly regioselective reaction with the lithium enolate of cyclohexanone, ortho to the MeO substituent.The product was converted to 2-(2,3-dimethoxyphenyl)cyclohexanone, thereby giving a novel and unique method for regioselective functionalization of veratrole.Similarly, anisolemanganese tricarbonyl tetrafluoroborate, and 4-bromoveratrolemanganese tricarbonyl tetrafluoroborate were prepared and their reactivity toward the enolate nucleophile was examined.
Selective C-C Bond Cleavage of Cycloalkanones by NaNO2/HCl
He, Tianyu,Chen, Dengfeng,Qian, Shencheng,Zheng, Yu,Huang, Shenlin
supporting information, p. 6525 - 6529 (2021/09/02)
A novel selective fragmentation of cycloalkanones by NaNO2/HCl has been established. The C-C bond cleavage reaction proceeds smoothly under mild conditions, selectively affording versatile keto acids or oxime acids. The methodology can streamline the synthesis of valuable chiral molecules and isocoumarins from readily available feedstocks.
Diversity-Oriented Synthesis of Bioactive Azaspirocycles
Lepovitz, Lance T.,Martin, Stephen F.
, (2019/11/03)
A collection of novel azaspirocyclic β-arylethylamines was prepared in good yield and excellent diastereoselectivity by an expedient strategy that features condensation of a cyclic ketone with an amino allylsilane and a tandem aza-Sakurai cyclization to generate several different spirocyclic N-heterocycles. Subsequent elaboration of the spirocyclic scaffold was achieved via Pictet-Spengler cyclizations, Suzuki cross-coupling reactions, N-functionalizations, and olefin refunctionalization reactions to create a diverse library of compounds, several of which have nanomolar affinity for the sigma 1 receptor and transmembrane protein 97 (TMEM97).