Improved synthesis of tertiary propargyl alcohols by the Favorskii reaction of alkyl aryl (hetaryl) ketones with acetylene
摘要:
Alkyl aryl (hetaryl) ketones react with acetylene under atmospheric pressure in the superbasic system KOH-EtOH-H2O-DMSO at 10-15A degrees C (2 h) to give the corresponding tertiary propargyl alcohols in up to 91% yield. The procedure requires no large excess of KOH and low-boiling inflammable solvents, produces few wastes, and is safe and convenient on the laboratory scale; there are no limitations for its large-scale application. DOI: 10.1134/S1070428013010028
[EN] ALKYNYL ALCOHOLS AS KINASE INHIBITORS<br/>[FR] ALCOOLS D'ALCYNYLE UTILISÉS COMME INHIBITEURS DE KINASES
申请人:AMGEN INC
公开号:WO2009158011A1
公开(公告)日:2009-12-30
Selected compounds are effective for prophylaxis and treatment of inflammation and inflammatory disorders, such as NIK-mediated disorders. The invention encompasses novel compounds, analogs, prodrugs and pharmaceutically acceptable salts thereof, pharmaceutical compositions and methods for prophylaxis and treatment of diseases and other maladies or conditions involving, inflammation and the like.
Synthesis and Structural Characterization of a Series of New Chiral‐at‐Metal Ruthenium Allenylidene Complexes
作者:Stephen Costin、Andria K. Widaman、Nigam P. Rath、Eike B. Bauer
DOI:10.1002/ejic.201001176
日期:2011.3
that the chiral information was transferred from the precursor complex to the corresponding allenylidenes. Dynamic NMR experiments showed that during the synthesis of allenylidene complexes only one diastereomer was formed. The research presented herein has an impact on the chemistry of chiral allenylidene complexes as catalysts and as potential intermediates in propargylic substitution reactions.
Approach to the synthesis of nogalarol via the cycloaddition of a carbene-chromium complex with a functionalized alkyne
作者:M.F. Semmelhack、Nakcheol Jeong
DOI:10.1016/s0040-4039(00)94579-9
日期:1990.1
The alkyne, 4, prepared stereoselectively in 7 steps from acetyl furan, reacts with (methoxy)(phenyl)carbenepentacarbonylchromium(0), 15, to give the model (16) for nogalarol (1b) in 43% yield.
Selected compounds are effective for prophylaxis and treatment of inflammation and inflammatory disorders, such as NIK-mediated disorders. The invention encompasses novel compounds, analogs, prodrugs and pharmaceutically acceptable salts thereof, pharmaceutical compositions and methods for prophylaxis and treatment of diseases and other maladies or conditions involving, inflammation and the like.
A chromene compound having a short fading half period, especially, a short fading half period even at a low temperature in a general-purpose polymer solid matrix.
The chromene compound is represented by the following formula (
1
).
wherein R
1
is a hydroxyl group or the like, R
2
and R
3
are each an aryl group or the like, C* is a spiro carbon atom,
a spiro ring A represented by the following formula is a saturated hydrocarbon ring having 4 to 12 ring member carbon atoms or the like, and at least one ring member carbon atom constituting the ring A is a group represented by the following formula (4), and X is a divalent group such as arylene group,
wherein R
7
and R
8
are each a cycloalkyl group or the like.