Direct amidation of aniline derivatives with 1,1-dichloro-2-nitroethene in water
摘要:
A green methodology was established for direct amidation of anilines using 1,1-dichloro-2-nitroethene. The new protocol provides convenient N-nitroacetylation for the anilines. This method was applicable to anilines include anthranilic acids, anthranilamides, phenylbenzohydrazides, diphenylamine, and 2-aminobenzenesulfonamide. The amidation process was accomplished in water and the products can be easily separated by filtration. (C) 2015 Elsevier Ltd. All rights reserved.
The invention is concerned with novel nitrogen-containing heteroaryl compounds of formula (I)
wherein A
1
, A
2
,
R
1
, R
2
, R
3
, R
4
, R
5
and R
6
are as defined in the description and in the claims, as well as physiologically acceptable salts and esters thereof. These compounds inhibit PDE10A and can be used as therapeutics.
[EN] NITROGEN CONTAINING HETEROARYL COMPOUNDS<br/>[FR] COMPOSÉS HÉTÉROARYLES CONTENANT DE L'AZOTE
申请人:HOFFMANN LA ROCHE
公开号:WO2011154327A1
公开(公告)日:2011-12-15
The invention is concerned with novel nitrogen-containing heteroaryl compounds of formula (I) wherein A1, A2, (a), R1, R2, R3, R4, R5 and R6 are as defined in the description and in the claims, as well as physiologically acceptable salts and esters thereof. These compounds inhibit PDE10A and can be used as medicaments.