report a general and efficient Pd-catalysed alkoxycarbonylation of sterically hindered and demanding olefins including a variety of tri-, tetra-substituted and 1,1-disubstituted alkenes. In the presence of 1,3-bis(tert-butyl(pyridin-2-yl)phosphanyl)propane L3 or 1,4-bis(tert-butyl(pyridin-2-yl)phosphanyl)butane L4 the desired esters are obtained in good yields and selectivities. Similar transformation
[EN] PROCESS FOR PREPARING 2-NAPHTHANOIC ACIDS AND ESTERS THEREOF
申请人:EASTMAN KODAK COMPANY
公开号:WO1989003377A1
公开(公告)日:1989-04-20
(EN) 2-Naphthanoic acid or ester thereof is prepared by heating ketals and enol ethers or esters of an alpha-acetyl cinnamic acid or ester thereof at a temperature effective to cyclize the compound and form said 2-naphthanoic acid or ester thereof.(FR) On prépare de l'acide 2-naphtanoïque ou ses esters en chauffant des cétones et des énol ethers ou des esters d'un acide alpha-acetyl cinnamique ou des esters de celui-ci à une température susceptible d'entraîner la cyclisation du composé et de former ledit acide 2-naphtanoïque ou l'ester de celui-ci.
2-萘羧酸或其实质可通过加热 alpha-etyl-acetylisuamic酸或其实质与酮/烯酮或其酯在形成 2-萘羧酸或其实质的循环反应中。
对此,法文本翻译如下:
On prépare de l'acide 2-naphtanoïque ou ses esters en chauffant des cétones et des énol ethers ou des esters d'un acide alpha-acetyl cinnamique ou des esters de cavb REALLYAU eng_specs.html----------Bounds specifications bound with a 500-1500Ωm Si substrate, using a control affinity approach, capable of achieving complete or near-complete separation of conductive paths, with precise termination.
PROCESS FOR PREPARING 2-NAPHTHANOIC ACIDS AND ESTERS THEREOF
申请人:EASTMAN KODAK COMPANY (a New Jersey corporation)
公开号:EP0380585A1
公开(公告)日:1990-08-08
PROCESSES FOR PREPARING 3,4-DIHYDRO 2-NAPHTHANOIC ACID AND 2-NAPHTHANOIC ACID AND ESTERS THEREOF
申请人:EASTMAN KODAK COMPANY (a New Jersey corporation)
公开号:EP0393086A1
公开(公告)日:1990-10-24
TRITERPENEQUINONE AND TRITERPENEPHENOL DERIVATIVES AND THEIR APPLICATION FOR THE TREATMENT OF TUMORS AND PARASITIC DISEASES
申请人:CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS