Microwave Synthesis of 5-Substituted 1<i>H</i>-Tetrazoles Catalyzed by Bismuth Chloride in Water
作者:Adiel Coca、Liana Feinn、Joshua Dudley
DOI:10.1080/00397911.2014.989451
日期:2015.4.18
Abstract Bismuth chloride was used to catalyze the [2 + 3] cycloaddition between sodium azide with aryl nitriles, aliphatic nitriles, and vinyl nitriles. A number of 5-substituted1H-tetrazoles were synthesized in water or isopropanol/water mixtures using microwave heating. Good yields were obtained for these reactions when heated for 1 h at 120–160 °C in a 3:1 isopropanol/water mixture. A few of the
[EN] 5-SUBSTITUTED 1 H-TETRAZOLE COMPOUNDS, METHODS OF SYNTHESIZING AND THERAPEUTIC USE<br/>[FR] COMPOSÉS DE 1H-TÉTRAZOLE SUBSTITUÉ EN POSITION 5, PROCÉDÉS DE SYNTHÈSE ET UTILISATION THÉRAPEUTIQUE
申请人:SOUTH CONNECTICUT STATE UNIV
公开号:WO2016187521A1
公开(公告)日:2016-11-24
A pharmaceutical formulation includes an antibiotic 5-substituted 1H-tetrazole compound in an amount sufficient to treat a bacterial infection, the antibiotic 5-substituted 1H-tetrazole compound being selected from the group consisting of: an aryl tetrazole compound, a heteroaryl tetrazole compound, a vinyl tetrazole compound, and a benzylic tetrazole compound. A method of synthesizing an antibiotic 5-substituted 1H-tetrazole compound includes forming a mixture of an azide, an organonitrile, a catalyst, and a solvent and heating the mixture at a temperature of about 100-160°C for about 30 minutes to 4 hours to synthesize the antibiotic 5-substituted 1H-tetrazole compound.
<i>N-</i>Morpholinomethyl-5-lithiotetrazole: A Reagent for the One-Pot Synthesis of 5-(1-Hydroxyalkyl)tetrazoles
作者:Panagiotis D. Alexakos、Duncan J. Wardrop
DOI:10.1021/acs.joc.9b01885
日期:2019.10.4
An efficient, one-pot method for the preparation of 5-(1-hydroxyalkyl)tetrazoles is reported. N-Morpholinomethyl-5-lithiotetrazole, generated by the deprotonation of 4-(N-tetrazolylmethyl)morpholine with LiHMDS, undergoes addition to ketones and aldehydes (both aromatic and aliphatic) to form 5-(1-hydroxyalkyl)tetrazoles in a high yield, after acidic workup. The reported protocol displays a broad substrate
Preparation of 5-Substituted 1<i>H</i>-Tetrazoles from Nitriles in Water
作者:Zachary P. Demko、K. Barry Sharpless
DOI:10.1021/jo010635w
日期:2001.11.1
The addition of sodium azide to nitriles to give 1H-tetrazoles is shown to proceed readily in water with zinc salts as catalysts. The scope of the reaction is quite broad; a variety of aromatic nitriles, activated and unactivated alkyl nitriles, substituted vinyl nitriles, thiocyanates, and cyanamides have all been shown to be viable substrates for this reaction.
Reducing Platelet Activation, Aggregation and Platelet-Stimulated Thrombosis or Blood Coagulation by Reducing Mitochondrial Respiration
申请人:Collman James P.
公开号:US20110301180A1
公开(公告)日:2011-12-08
It has been discovered that inhibiting mitochondrial respiration in platelets reduces platelet activation or platelet aggregation. Certain heterocyclic compounds significantly reduced one or more platelet functions including clumping, sticking or platelet-stimulated clotting. Thus diseases or disorders mediated by inappropriately high levels of platelet activation or platelet aggregation can be treated by administering a therapeutically effective amount of a heterocyclic compound or nonheterocyclic mitochondrial inhibitor that significantly reduces one or more platelet functions including clumping, sticking or platelet-stimulated clotting, preferably in a reversible manner.