Synthesis of 2-(2-Oxo-2-phenylethyl)cyclopentanone by Rhodium-Catalyzed Tandem Alkynyl Cyclobutanols Hydroacylation and Semipinacol Rearrangement
作者:Rui Guo、Xueling Mo、Guozhu Zhang
DOI:10.1021/acs.orglett.8b03973
日期:2019.3.1
A rhodium-catalyzed tandem reaction of alkynyl cyclobutanols with salicylaldehydes has been developed. The reaction offers a new and atom-economical approach for the selective preparation of multisubstituted 2-(2-oxo-2-phenylethyl)cyclopentanone in high yields under mild reaction conditions with tolerance of a broad range of substituted alkynyl cyclobutanols and salicylaldehyes. The isolation of intermediate
[2 + 2] Cycloaddition of dichloroketene to allyl ethers and thioethers
作者:Blair D. Johnston、Eva Czyzewska、Allan C. Oehlschlager
DOI:10.1021/jo00392a039
日期:1987.8
JOHNSTON, B. D.;CZYZEWSKA, E.;OEHLSCHLAGER, A. C., J. ORG. CHEM., 52,(1987) N 16, 3693-3697
作者:JOHNSTON, B. D.、CZYZEWSKA, E.、OEHLSCHLAGER, A. C.
DOI:——
日期:——
Synthesis of 1-Amino-3-[(dihydroxyboryl)methyl]- cyclobutanecarboxylic Acid as a Potential Therapy Agent
作者:George W. Kabalka、Min-Liang Yao
DOI:10.1021/jo048824c
日期:2004.11.1
lic acid (1) was synthesized for potential use in boron neutron capture therapy. Starting from the readily available 3-(bromomethyl)cyclobutanone ketal (4), several synthetic routes to 1 were evaluated. After several unsuccessful attempts with traditional synthetic methods, a novel synthetic strategy to generate the new boronated cyclic amino acid was developed. The tolerance of the hydantoin group