been investigated as a new reagent for the nitrosation of various substrates containing an amino functionality. Reactions took place in an aqueous solution of the reagent. The pH of the reaction mixture remained in the range 4.3-5. Thus, hydrazides were transformed to the corresponding acyl azides, and the reactions with arenesulfonyl hydrazines afforded arenesulfonylazides. Treatment of aromatic
Synthesis of Acyl Phosphoramidates Employing a Modified Staudinger Reaction
作者:Iain Currie、Brad E. Sleebs
DOI:10.1021/acs.orglett.0c03987
日期:2021.1.15
A one-step synthesis of acyl phosphoramidates from a variety of functionalized acyl azides has been developed employing trimethylsilyl chloride as an activating agent in a modified Staudinger reaction. The methodology was further adapted to include the in situ generation of the acyl azides from a diverse selection of carboxylic acids and hydrazide startingsynthons. The reaction scope was extended
Extremely Simple but Long Overlooked: Generation of α-Azido Alcohols by Hydroazidation of Aldehydes
作者:Klaus Banert、Christian Berndt、Samia Firdous、Manfred Hagedorn、Young-Hyuk Joo、Tobias Rüffer、Heinrich Lang
DOI:10.1002/anie.201003246
日期:2010.12.27
Discovered by accident: Just because an example of a simple substructure cannot be found in literature does not mean that corresponding compounds are not readily accessible. α‐Azido alcohols like 1‐azidoethanol have now been prepared and isolated.
Discovery of N-phenyl-(2,4-dihydroxypyrimidine-5-sulfonamido) phenylurea-based thymidylate synthase (TS) inhibitor as a novel multi-effects antitumor drugs with minimal toxicity
cell migration and angiogenesis in cancer tissues. Furthermore, in vivo pharmacology evaluations of L14e showed significant antitumor activity in A549 cells xenografts with minimal toxicity. All of these results demonstrated that the L14e has the potential for drugdiscovery as a multi-effects inhibitor and provides a new reference for clinical treatment of non-small cell lung cancer.
One-pot, direct synthesis of acyl azides from carboxylic acids using Ph2PCl/I2/NaN3 reagent system
作者:Najmeh Nowrouzi、Mohammad Zareh Jonaghani
DOI:10.1016/j.cclet.2012.01.031
日期:2012.4
Abstract A mild, efficient and simple method for the preparation of acyl azides from carboxylic acids using chlorodiphenylphosphine in the presence of moleculariodine and sodium azide is described.