28217-95-0Relevant articles and documents
Mild Condition for the Deoxygenation of α-Heteroaryl-Substituted Methanol Derivatives
Meng, Na,Yu, Wensheng,Suzuki, Takao,Chen, Maofen,Qi, Zhiqi,Hu, Bin,Bao, Jianming,Debenham, John S.,Mazzola, Robert,Duffy, Joseph L.
, p. 5560 - 5567 (2021/05/04)
A mild condition via PPh3/I2/imidazole for the deoxygenation of substituted methanol derivatives has been identified. This metal-free process was found to proceed well on secondary or tertiary alcohols substituted with one or two heteroaryl groups, and it tolerates acid-sensitive heterocycles. This condition works for methanol derivatives substituted with 2-pyridyl, 4-pyridyl, or other heterocyclic groups, allowing the negative charge formed during the reaction to resonate to a nitrogen atom. Methanol derivatives substituted with 3-pyridyl or heterocyclic groups that do not allow the negative charge formed during the reaction to resonate to a nitrogen atom will not undergo deoxygenation under this condition.
PBr3-mediated unexpected reductive deoxygenation of α-aryl-pyridinemethanols: Synthesis of arylmethylpyridines
Nishigaya, Yosuke,Umei, Kentaro,Watanabe, Daisuke,Kohno, Yasushi,Seto, Shigeki
, p. 1566 - 1572 (2016/03/01)
PBr3-mediated reductive deoxygenation of α-aryl-pyridinemethanols to provide arylmethylpyridines is described, the alcohol substrate scope is explored, free radical trap TEMPO (2,2,6,6-tetramethyl-1-piperidinyloxy) is introduced, and the hydrogen source of the methylene product is defined. The unexpected reaction enabled us to prepare previously inaccessible, novel EP1 antagonists.
PYRIMIDINONE DERIVATIVES AND METHODS OF USE THEREOF
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Page/Page column 188, (2008/12/08)
The present invention relates to Pyrimidinone Derivatives, compositions comprising a Pyrimidinone Derivative, and methods of using the Pyrimidinone Derivatives for treating or preventing obesity, diabetes, a metabolic disorder, a cardiovascular disease or a disorder related to the activity of G protein-coupled receptor 119 ("GPR119") in a patient.