Phosphonium salts and aldehydes from the convenient, anhydrous reaction of aryl acetals and triphenylphosphine hydrobromide
作者:Mani Ramanathan、Duen-Ren Hou
DOI:10.3998/ark.5550190.0014.308
日期:——
The reactions of aryl acetals/ketals and triphenylphosphine hydrobromide gave the corresponding aldehydes/ketones and alkyl phosphonium bromides. This reaction was applied to convert acetals/ketals to the corresponding aldehydes/ketones under an anhydrous and convenient condition (50 oC, 5 min, up to 90% yield), and acid sensitive functional groups were compatible.
4-Piperazinnylthieno[2,3-d]Pyrimidine Compounds as Platelet Aggregation Inhibitors
申请人:Ennis Michael Dalton
公开号:US20080176857A1
公开(公告)日:2008-07-24
Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I:
wherein A
1
, A
2
, A
3
, A
4
, A
5
, A
6
, A
7
, A
8
, X
4
, X
6
, R
2
, R
4
, R
5
, and R
6
are as defined in the detailed description of the invention. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.