88462-64-0Relevant articles and documents
Drastic fluorine effect: Complete reversal of the selectivity in the Au-catalyzed hydroalkoxylation reaction of fluorinated haloalkynes
Cloutier, Mélissa,Mamone, Marius,Paquin, Jean-Fran?ois
, p. 5969 - 5972 (2020/06/04)
The gold-catalyzed hydration reaction of haloalkynes is highly regioselective producing 2-halomethylketones as the sole products. Herein, we document a drastic fluorine effect where the reaction of 1-halo-3,3-difluoroalkynes as substrates leads to a complete reversal of selectivity and produces 3,3-difluoroesters as the unique products.
Synthesis of 2-tetralone derivatives by Bi(OTf)3-catalyzed intramolecular hydroarylation/isomerization of propargyl alcohols
Yun, Jihee,Park, Jungmin,Kim, Jaehyun,Lee, Kooyeon
, p. 1045 - 1048 (2015/02/19)
Compared to 1-tetralones, 2-tetralones are expensive, less stable, and difficult to synthesize. A concise Bi-catalyzed method was developed for the synthesis of 2-tetralones from 5-phenylpent-1-yn-3-ol derivatives. Diverse 2-tetralones were obtained in moderate to good yields under mild conditions.
Novel 6-alkyl and 6.8-dialkylbicyclo(4.2.0)octane derivatives
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, (2008/06/13)
Compounds useful in treating or preventing gastrointestinal ulcers and in treating cardiovascular disorders such as thrombosis, hypertension and atherosclerosis are depicted in formulas (1), (2) and (3): STR1 wherein: A is --C C--, trans --HC=CH--, trans --CH=CHCH2 -- or --CH2 CH2 --; X is lower alkyl of 1-6 carbon atoms; Y is hydrogen, exo-(lower alkyl) or endo-(lower alkyl); n is an integer from 2-4; R1 is --CH2 OH, --CHO, --CO2 R or --CO2 H, and the olefin formed by the R1 (CH2)n CH= moiety is either (E) or (Z); R2 is hydrogen or methyl, or optionally --CH=CH2 when A is trans --CH=CHCH2 --; and R3 is linear or branched alkyl, alkenyl or alkynyl having 5-10 carbon atoms, STR2 --(CH2)m -phenyl or CH2 O-phenyl; in which each phenyl may be optionally substituted with lower alkyl, lower alkoxy, trifluoromethyl, or halogen. in which: a is an integer of 0, 1 or 2; b is an integer of 3-7; m is an integer of 0, 1 or 2; and R is STR3 wherein X' is STR4 in which each R4 is independently hydrogen or lower alkyl having 1-6 carbon atoms, or a pharmaceutically acceptable, non-toxic salt or ester thereof.