Synthesis of amides using the Ritter reaction with bismuth triflate catalysis
作者:Emmanuel Callens、Andrew J. Burton、Anthony G.M. Barrett
DOI:10.1016/j.tetlet.2006.10.023
日期:2006.12
N-tert-Alkyl and aryl amides were obtained by a Ritter reaction of various nitriles with tertiary alcohols in the presence of a catalytic amount of bismuth triflate.
ñ -叔-烷基和芳基酰胺通过与各种腈的Ritter反应,得到叔在三氟甲磺酸铋催化量的存在下的醇。
INSERTION OF BENZOYLNITRENE TOWARD HYDROCARBON C–H BONDS
作者:Masao Inagaki、Tadao Shingaki、Toshikazu Nagai
DOI:10.1246/cl.1981.1419
日期:1981.10.5
Benzoylnitrene, generated photochemically from benzoyl azide, was inserted stereospecifically into the tertiary C–H bonds of cis- and trans-1,4-dimethylcyclohexanes. The insertion regioselectivities toward the C–H bonds were determined by use of 2-methylbutane and 2,3-dimethylbutane. The insertion proceeds involving the singlet nitrene, but not the triplet, and the photo-Curtius rearrangement takes place independently of the nitrene reaction.
Beckmann Fragmentation and Rearrangement. Part VII. Fragmentation and cyclization of ?-methylthio-ketoximes. Fragmentation reactions no. 27
作者:Cyril A. Grob、Junya Ide
DOI:10.1002/hlca.19740570833
日期:——
however, undergoes a Beckmannrearrangement. The fragmentation of α-methylthio-isobutyropher one anti-oxime tosylate (13b) is accompanied by cyclization to the 1, 2-thiazetin-1-ium ion 27, which is hydrolyzed via the sulfimine 29 to the keto sulfide 20 and the keto sulfoxide 30. A comparison of the rates of the α-alkylthio anti-ketoxime tosylates 12b and 13b and of the homomorphous oxime tosylates 16b and
Quinazoline Protein Tyrosine Phosphatase Inhibitors
申请人:Berthel Steven Joseph
公开号:US20090105477A1
公开(公告)日:2009-04-23
The present invention comprises aminoquinazoline compounds of the general formula I:
wherein X is an unsubstituted or substituted phenyl, or is an unsubstituted or substituted 5 or 6 membered heteroaromatic ring. The compounds of the present invention are potent inhibitors of PTP1B. Accordingly, the invention also encompasses pharmaceutical compositions and methods of treating or preventing PTP-1B mediated diseases, including diabetes, obesity, and diabetes-related diseases.
Substituted dihydro-1H-pyrrolo[3,2-c]pyridin-4(5H)-ones as RIPK3 inhibitors
申请人:BRISTOL-MYERS SQUIBB COMPANY
公开号:US10301306B2
公开(公告)日:2019-05-28
Compounds having Formula (I), and enantiomers, and diastereomers, stereoisomers, pharmaceutically-acceptable salts thereof, are useful as kinase modulators, including RIPK3 modulation. All the variables defined herein.