TRISUBSTITUTED PYRIDO[2,3-D]PYRIMIDINES, METHODS FOR PREPARING SAME AND THERAPEUTIC USES THEREOF
申请人:CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S)
公开号:US20150203489A1
公开(公告)日:2015-07-23
The present invention relates to compounds of the following general formula (I):
wherein:
R
1
is notably a group —NR
a
R
b
, R
a
and R
b
forming together with the nitrogen atom onto which they are bound, a heterocycle comprising from 5 to 30 atoms,
R
2
is notably an aryl comprising from 5 to 30 atoms, and
R
3
is notably an alkenyl comprising from 1 to 20 carbon atoms.
Direct metalation of methoxymethyl arylmethyl ethers: A tin-free approach to the generation of α-alkoxyalkoxy-substituted aryllithiums
作者:Ugo Azzena、Luisa Pisano、Sarah Mocci
DOI:10.1016/j.jorganchem.2009.07.007
日期:2009.10
arylmethyllithiums was achieved by directmetalation of the corresponding arylmethyl methoxymethyl ethers. While the effect of substituents at the benzylic position is straightforward, substituents located on the aromatic ring promote the set up of a competition between lateral and aromatic metalation, strongly affected by the position and relative orthodirecting properties of the new substituent. The proposed methodology
High-valent [SnIV(Br8TPP)(OTf)2] as a highly efficient and reusable catalyst for selective methoxymethylation of alcohols and phenols: The effect of substituted bromines on the catalytic activity
tin(IV)octabromotetraphenylporphyrinato trifluoromethanesulfonate, [SnIV(Br8TPP)(OTf)2], was used for selective methoxymethylation of alcohols and phenols with formaldehyde dimethyl acetal (FDMA) at room temperature. Different primary, secondary and tertiary alcohols as well as phenols were converted to their corresponding methoxymethyl ethers with FMDA in the presence of an electron deficient tin(IV) porphyrin
An efficient and selective method for methoxymethylation of alcohols and phenols with formaldehyde dimethyl acetal (FDMA) catalyzed by electron deficient tin(IV)tetraphenylporphyrinato trifluoromethanesulfonate, [SnIV(TPP)(OTf)2], is reported. A variety of primary, secondary and tertiary alcohols as well as phenols were converted to their corresponding methoxymethyl ethers with FDMA in the presence
Ionic liquid-induced conversion of methoxymethyl-protected alcohols into nitriles and iodides using [Hmim][NO3]
作者:Jalil Noei、Arsalan Mirjafari
DOI:10.1016/j.tetlet.2014.06.016
日期:2014.8
This Letter reports a one-pot efficient conversion of methoxymethyl-ethers into their corresponding nitriles and iodides using the ionic liquid, 1-methyl-3H-imidazolium nitrate ([Hmim][NO3]) under microwave irradiation. A variety of products were prepared in high yields using this method.