Harnessing the Power of the Asymmetric Grignard Synthesis of Tertiary Alcohols: Ligand Development and Improved Scope Exemplified by One-Step Gossonorol Synthesis
作者:Saranna E. Kavanagh、Declan G. Gilheany
DOI:10.1021/acs.orglett.0c02629
日期:2020.11.6
A series of N-substituted cyclohexyldiaminophenolic ligands for the asymmetric Grignard synthesis of tertiary alcohols is reported. The 2,5-dimethylpyrrole-decorated ligand led to improved enantioselectivities and broadened the scope of the methodology. As an exemplar, we report an unprecedented highly selective one-step synthesis of gossonorol in 93% ee, also constituting the shortest formal syntheses
Preparative scale Achmatowicz and aza-Achmatowicz rearrangements catalyzed by Agrocybe aegerita unspecific peroxygenase
作者:Balázs Pogrányi、Tamara Mielke、Alba Díaz Rodríguez、Jared Cartwright、William P. Unsworth、Gideon Grogan
DOI:10.1039/d4ob00939h
日期:——
unspecific peroxygenase (UPO) from Agrocybe aegerita (rAaeUPO-PaDa-I-H) is an effective and practical biocatalyst for the oxidative expansion of furfuryl alcohols/amines on a preparative scale, using the Achmatowicz and aza-Achmatowicz reaction. The high activity and stability of the enzyme, which can be produced on a large scale as an air-stable lyophilised powder, renders it a versatile and scalable biocatalyst
Super-Aromatic Properties of Furan. II. The Friedel—Crafts Reaction
作者:Henry Gilman、N. O. Calloway
DOI:10.1021/ja01337a053
日期:1933.10
Stable carbocations. 244. Use of 2-thienyl, 2-furyl, 5-ethyl-2-furyl, and protonated 4-acetylphenyl substituents in carbon-13 NMR chemical shift correlations
作者:George A. Olah、Arthur L. Berrier、G. K. Surya Prakash
DOI:10.1021/jo00141a019
日期:1982.9
Sjoeholm, Rainer; Woerlund, Krister, Acta chemica Scandinavica. Series B: Organic chemistry and biochemistry, 1980, vol. 34, # 6, p. 435 - 442