Rhodium(I)-Catalyzed Intramolecular Hydroacylation of 4,6-Dienals: Novel Synthesis of Cycloheptenones
作者:Yoshihiro Sato、Yoshihiro Oonishi、Miwako Mori
DOI:10.1055/s-2007-983774
日期:2007.7
Rhodium(I)-catalyzedhydroacylation of 4,6-dienals was investigated. Hydroacylation of 4,6-dienals with a substituent at the C7 position produced cycloheptenone derivatives as the major products, while the cyclization of 4,6-dienals with no substituent at the terminus of the diene moiety preferentially gave cyclopentanone derivatives. The olefinic geometry of the diene moiety in 4,6-di-enals also affected
Chiral diphosphorus compounds and transition metal complexes thereof
申请人:Knochel Paul
公开号:US20050288523A1
公开(公告)日:2005-12-29
The present invention relates to chiral diphosphorus compounds and transition metal complexes thereof, to a process for preparing chiral diphosphorus compounds and oxides thereof, and transition metal complexes comprising the chiral diphosphorus compounds. In a further aspect, the invention relates to the use of the chiral diphosphorus compounds or transition metal complexes thereof in asymmetric syntheses.
SUBSTITUTED AMINOINDANES AND ANALOGS THEREOF, AND THE PHARMACEUTICAL USE THEREOF
申请人:Rackelmann Nils
公开号:US20110201590A1
公开(公告)日:2011-08-18
The invention relates to substituted aminoindanes and analogs thereof of formula (I) and the pharmaceutical use thereof. Medicaments which comprise compounds of this type are suitable for the prevention or treatment of diverse disorders such as, for example, of respiratory disorders, cystic fibrosis disorders, acute or chronic renal disorders or bowel disorders.
Industrially advantageous processes for producing a 2-alkyl-2-cyclopentenone in high yields starting from a 2-(1-hydroxyalkyl)cyclopentanone or a 2-alkylidenecyclopentanone, which are obtainable from a cyclopentanone and a carbonyl compound. A 2-(1-hydroxyalkyl)cyclopentanone represented by the following general formula (1):
1
(wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
and R
7
each independently represents hydrogen atom, an alkyl group having 1 to 10 carbon atoms which may have one or more substituents or an aromatic group which may have one or more substituents, and each of (1) R
6
or R
7
with R
3
and (2) R
6
or R
7
with R
4
or R
5
may be together combined to form a ring which may have a double bond) is subjected to dehydrative isomerization in the presence of a bromine compound and/or an iodine compound.
Chalcone and its analogs as agents for the inhibition of angiogenesis and related disease states
申请人:Bowen J. Phillip
公开号:US20090018167A1
公开(公告)日:2009-01-15
The present invention relates to chalcone and chalcone derivatives and analogs which are useful as angiogenesis inhibitors. The present compounds, which are inexpensive to synthesize, exhibit unexpectedly good activity as angiogenesis inhibitors. The present invention also relates to the use of chalcone and its analogs as antitumor/anticancer agents and to treat a number of conditions or disease states in which angiogenesis is a factor, including angiogenic skin diseases such as psoriasis, acne, rosacea, warts, eczema, hemangiomas, lymphangiogenesis, among numerous others, as well as chronic inflammatory disease such as arthritis.