Solvent-free preparation of α,α-dichloroketones with sulfuryl chloride
作者:Dewei Tu、Juan Luo、Wengao Jiang、Qiang Tang
DOI:10.1016/j.tetlet.2021.153335
日期:2021.9
An efficient and facile method is reported for the synthesis of a series of α,α-dichloroketones. The direct dichlorination of methyl ketones and 1,3-dicarbonyls using an excess amount of sulfuryl chloride affords the corresponding -dichloro compounds in moderate to excellent yields. Moreover, the protocol features high yields, broad substrate scope, and simple reaction conditions without using any
Substituted imidazole derivatives, compositions, and methods of use as PTPase inhibitors
申请人:Mjalli M.M. Adnan
公开号:US20070191385A1
公开(公告)日:2007-08-16
The present invention provides imidazole derivatives of Formula (I-IV), methods of their preparation, pharmaceutical compositions comprising the compounds of Formula (I-IV), and their use in treating human or animal disorders. The compounds of the invention inhibit protein tyrosine phosphatase 1B and thus can be useful for the management, treatment, control, or the adjunct treatment of diseases mediated by PTPase activity. Such diseases include Type I diabetes and Type II diabetes.
A Facile One-pot Synthesis of<i>α</i>-Halo,<i>α</i>-allylic Aldehydes from<i>α</i>,<i>α</i>-Dihalo Ketones Utilizing Allylic Zinc Bromide
作者:Xiaolei Wang、Songlin Zhang
DOI:10.1002/cjoc.201180466
日期:2012.1
An efficient synthesis of various α‐halo,α‐allylic aldehydesfrom α,α‐dihalo ketones using both cyclic (3‐bromocyclohex‐1‐ene zinc bromide and (Z)‐3‐bromocyclobut‐1‐ene zinc bromide) and acyclic (allylzinc bromide and cinnamylzinc bromide) type of allylic organozinc bromide with DMF as base is described. A possible reaction mechanism is also proposed.
IMIDAZO-, PYRAZOLOPYRAZINES AND IMIDAZOTRIAZINES AND THEIR USE
申请人:Siegel Stephan
公开号:US20110053929A1
公开(公告)日:2011-03-03
The invention relates to substituted imidazo-, pyrazolopyrazines and imidazotriazines and processes for their preparation, and their use for the manufacture of medicaments for the treatment and/or prophylaxis of diseases, in particular of hematological disorders, preferably of leukopenias and neutropenias.
Substituted azole derivatives, compositions, and methods of use
申请人:Mjalli M.M. Adnan
公开号:US20050187277A1
公开(公告)日:2005-08-25
The present invention provides azole derivatives of Formula (I), methods of their preparation, pharmaceutical compositions comprising the compounds of Formula (I), and their use in treating human or animal disorders. The compounds of the invention can be useful as inhibitors of protein tyrosine phosphatases and thus can be useful for the management, treatment, control, or the adjunct treatment of diseases mediated by PTPase activity. Such diseases include Type I diabetes and Type II diabetes.