Cross-Coupling of Mesylated Phenol Derivatives with Potassium Alkoxymethyltrifluoroborates
摘要:
Cross-coupling of mesylated phenol derivatives with various potassium alkoxymethyltrifluoroborates has been achieved. The corresponding aryl and heteroaryl alkoxymethyl compounds have been obtained with equal facility with both electron-rich and electron-poor substituents on the activated alcohol.
Highly Efficient Suzuki-Miyaura Coupling of Aryl Tosylates and Mesylates Catalyzed by Stable, Cost-Effective [1,3-Bis(diphenylphosphino)propane]nickel(II) Chloride [Ni(dppp)Cl2] with only 1 mol% Loading
作者:Han Gao、You Li、Yi-Guo Zhou、Fu-She Han、Ying-Jie Lin
DOI:10.1002/adsc.201000710
日期:2011.2.11
We present a highly active, inexpensive, universally applicable, and markedly stable [1,3-bis(diphenylphosphino)propane]nickel(II) chloride [Ni(dppp)Cl2] catalyst that is capable of effecting the Suzuki–Miyaura cross-coupling of the inherently less reactive but readily available aryl tosylates and mesylates with only 1 mol% loading and in the absence of extra supporting ligand. Under the optimized
INTERMEDIATES AND PROCESS FOR THE PREPARATION OF AROMATIC DERIVATIVES OF 1-ADAMANTANE
申请人:Comely Alexander Christian
公开号:US20110040115A1
公开(公告)日:2011-02-17
Process for the preparation of aromatic derivatives of 1-adamantane (tricyclo[3.3.1.1 (3,7)]decane), or an acceptable pharmaceutical salt thereof, based on a hydrolysis reaction of a precursor cyano compound. It also comprises different processes for obtaining the cyano compound. It is especially useful for obtaining Adapalene on an industrial scale in high yield and purity. It also comprises new intermediates useful in said preparation process.
Cross-Coupling of Mesylated Phenol Derivatives with Potassium Cyclopropyltrifluoroborate
作者:Gary A. Molander、Floriane Beaumard、Terren K. Niethamer
DOI:10.1021/jo2015246
日期:2011.10.7
C-O activation of mesylates by a palladium catalyst and subsequent cross-coupling with potassium cyclopropyltrifluoroborate have been achieved with high yield. Both electron-enriched and electron-deficient aryl mesylates are suitable electrophilic partners for the Suzuki-Miyaura reaction. The scope was successfully extended to heteroaryl mesylates with yields up to 94%.
[EN] INTERMEDIATES AND PROCESS FOR THE PREPARATION OF AROMATIC DERIVATIVES OF 1-ADAMANTANE<br/>[FR] INTERMEDIAIRES ET PROCEDE DE PREPARATION DE DERIVES AROMATIQUES DE 1-ADAMANTANE
申请人:FINORGA SAS
公开号:WO2007063523A1
公开(公告)日:2007-06-07
[EN] Process for the preparation of aromatic derivatives of 1 -adamantane (tricyclo[3.3.1.1 (3,7)]decane), or an acceptable pharmaceutical salt thereof, based on a hydrolysis reaction of a precursor cyano compound. It also comprises different processes for obtaining the cyano compound. It is especially useful for obtaining Adapalene on an industrial scale in high yield and purity. It also comprises new intermediates useful in said preparation process. [FR] L'invention concerne un procédé de préparation de dérivés aromatiques de 1 -adamantane (tricyclo[3.3.1.1 (3,7)]décane) ou d'un sel de qualité pharmaceutique de ceux-ci, basé sur une réaction d'hydrolyse d'un composé cyano précurseur. L'invention concerne également divers procédés permettant d'obtenir le composé cyano. Le procédé selon l'invention est spécialement utile pour obtenir l'adapalène à une échelle industrielle, avec un rendement élevé et une pureté élevée. L'invention concerne également de nouveaux intermédiaires utiles dans le procédé de préparation selon l'invention.