The propargyltitanium reagents derived from 1-alkylpropyne condensed with aldehydes to give α-allenyl alcohol regioselectively, while the allenyltitanium reagents generated from 1-alky1-1-butyne derivatives gave threo-β-acetylenic alcohols with high regio- and stereoselectivities. The course of the reaction was determined by the substitution pattern of starting alkynes. The similar reactions of metallated
[EN] PROCESS FOR MAKING FATTY ACID NITRILES AND FATTY AMINES BY CROSS-METATHESIS OF NORMAL ALPHA OLEFINS<br/>[FR] PROCEDE DE FABRICATION DE NITRILES D'ACIDE GRAS ET D'AMINES GRASSES PAR METATHESE CROISEE D' DOLLAR G(A)-OLEFINES NORMALES
申请人:CHEVRON USA INC
公开号:WO2002006208A1
公开(公告)日:2002-01-24
A process for preparing fatty amines by the cross-metathesis of normal alpha olefins and acrylonitrile to form an intermediate fatty acid nitrile which is hydrogenated to the corresponding fatty amine.
Manganese(I)-Catalyzed H–P Bond Activation via Metal–Ligand Cooperation
作者:Juana M. Pérez、Roxana Postolache、Marta Castiñeira Reis、Esther G. Sinnema、Denisa Vargová、Folkert de Vries、Edwin Otten、Luo Ge、Syuzanna R. Harutyunyan
DOI:10.1021/jacs.1c10756
日期:2021.12.8
Mn(I) complexes are capable of H–P bond activation. This activation mode enables a general method for the hydrophosphination of internal and terminal α,β-unsaturatednitriles. Metal−ligand cooperation, a strategy previously not considered for catalytic H–P bond activation, is at the base of the mechanistic action of the Mn(I)-based catalyst. Our computational studies support a stepwise mechanism for the
[EN] 3-[4-(7H-PYRROLO[2,3-D]PYRIMIDIN-4-YL)-1H-PYRAZOL-1-YL]OCTANE- OR HEPTANE-NITRILE AS JAK INHIBITORS<br/>[FR] 3-[4-(7H-PYRROLO[2,3-D]PYRIMIDIN-4-YL)-1H-PYRAZOL-1-YL]OCTANE- OU HEPTANE-NITRILE EN TANT QU'INHIBITEURS DE JAK
申请人:INCYTE CORP
公开号:WO2010135621A1
公开(公告)日:2010-11-25
The present invention relates to the Janus kinase (JAK) inhibitors 3-[4-(7H-pyrrolo[2,3- d]pyrimidin-4-yl)-1H-pyrazol-l-yl]octanenitrile or 3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-y1)-1H- pyrazol-l-yl]heptanenitrile, as well as its compositions and methods of use, which is useful in the treatment of JAK-associated diseases including, for example, inflammatory and autoimmune disorders, skin disorders, cancer, and other diseases.
Boron reagents derived from trialkylsilylacetonitrites are effective for the synthesis of Z-α,β-unsaturated nitriles. Z-Terminal enyne units are synthesized from the titanium reagent from 1,3-bis-(trimethylsilyl)propyne and aldehydes.