Lewis Acid-Catalyzed Deprotection of <i>p</i>-Methoxybenzyl Ether
作者:Abderrahim Bouzide、Gilles Sauvé
DOI:10.1055/s-1997-990
日期:1997.10
The p-methoxybenzyl protecting group was readily removed from alcohols and phenols using catalytic amounts of AlCl3 or SnCl2•2H2O in the presence of EtSH at room temperature. Under these mild conditions other protecting groups such as methyl and benzyl ethers, p-nitrobenzoyl esters, TBDPS ethers and isopropylidene acetal were unchanged.
Facile and Selective Cleavageof Allyl Ethers Based on Palladium(0)-Catalyzed Allylic Alkylationof<i>N</i>,<i>N</i>′-DimethylbarbituricAcid
作者:Hirokazu Tsukamoto、Yoshinori Kondo
DOI:10.1055/s-2003-39320
日期:——
The classical palladium(0)-catalyzed allylic alkylation of N,N'-dimethylbarbituric acid can be applied to the facile and selective cleavage of allylic alkyl ethers to release the corresponding alcohols in excellent yield.This reaction proceeds under neutral conditions without any additive to activate the allyl ethers and tolerates various functional groups, such as ester, ether, ketone, alkyl and aryl
The present invention relates to a process for the preparation of organic nitrates having at least one nitryloxy and at least one hydroxy group, wherein the at least one hydroxy group may be present in form of an esterified hydroxy residue, the latter being esterified with an acid other than nitric acid.
[EN] QUINONE BASED NITRIC OXIDE DONATING COMPOUNDS<br/>[FR] COMPOSÉS DONNEURS D'OXYDE NITRIQUE À BASE DE QUINONE
申请人:NICOX SCIENCE IRELAND
公开号:WO2014170262A1
公开(公告)日:2014-10-23
The present invention relates to nitric oxide donor compounds having a quinone based structure of formula (I), wherein R1 to R6, m, n and p are as defined in claim 1, to processes for their preparation and to their use in the treatment of pathological conditions where a deficit of NO plays an important role in their pathogenesis, such as pulmonary arterial hypertension, Sickle cell disease, systemic sclerosis and scleroderma, muscular dystrophies, Duchenne's muscular dystrophy and Becker's muscular dystrophy, vascular dysfunctions.
[EN] PROCESS FOR THE PREPARATION OF NITRATE ACID ESTER OF ORGANIC COMPOUNDS<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION D'ESTER D'ACIDE DE NITRATE DE COMPOSÉS ORGANIQUES
申请人:NICOX SA
公开号:WO2012152438A1
公开(公告)日:2012-11-15
The present invention relates to a one-step process for the synthesis of nitric acid esters or 15N isotopically labeled nitrate esters of organic compounds starting from the correspondent alcohols. Formula (I).