Tandem catalytic oxidative deacetylation of acetoacetic esters and heteroaromatic cyclizations
作者:Yeming Ju、Di Miao、Ruiyang Yu、Sangho Koo
DOI:10.1039/c4ob02441a
日期:——
One pot syntheses of furan, thiophene, and pyrrole were accomplished by oxidative deacetylation using Mn(III)/Co(II) catalysts and the Paal–Knorr reaction from 1,5-dicarbonyl compounds, which are prepared from the conjugate addition of ethyl acetoacetate to α,β-unsaturatedcarbonyl compounds. The oxidative deacetylation and reductive cyclization of β-ketoesters derived from ethyl acetoacetate and o-nitrobenzyl
ISOXAZOLIN-5-ONE DERIVATIVES AND HERBICIDES CONTAINING THE SAME AS ACTIVE
INGREDIENTS
申请人:HOKKO CHEMICAL INDUSTRY CO., LTD.
公开号:US20210309619A1
公开(公告)日:2021-10-07
An isoxazolin-5-one derivative represented by formula (1) below:
wherein R
1
represents a C1-C6 haloalkyl group, Q represents a C3-C8 cycloalkyl group substituted with a C1-C6 alkoxy group, each of R
2
, R
3
and X represents a certain substituent or the like, and n represents an integer of 1 to 4, wherein X's may be different from each other when n represents an integer of 2 to 4, and a herbicide containing the isoxazolin-5-one derivative as an active ingredient are provided.
申请人:Myongji University Industry and Academia Cooperation Foundation 명지대학교 산학협력단(220050139720) BRN ▼135-82-11060
公开号:KR101599969B1
公开(公告)日:2016-03-04
본 발명은 아세토아세틱 에스테르를 이용한 인돌의 합성방법에 관한 것으로 더욱 상세하게는 아세토아세틱 에스테르 화합물을 2-니트로벤질 브로마이드 화합물에 첨가시켜 얻어지는 2-니트로벤질 아세톤 화합물에 망간(III)/코발트(II) 촉매를 이용한 탈아세틸화 반응을 적용하여 2-니트로벤질 케톤 화합물을 합성한 다음, 여기에 금속 촉매를 이용한 수소화 반응을 적용하여 니트로기의 아민기로의 환원과 더불어 케톤기와의 아로마틱 고리화 반응을 유발하여 인돌을 합성하는 방법에 관한 것이다.
Mechanism and linear free energy relationships in the kinetics of formation of bicyclo[3.3.1]nonane derivatives from 1,3,5-trinitrobenzene, phenyl-substituted 1-benzyl-1-(ethoxycarbonyl)-2-propanones, and triethylamine
作者:D. Kalaivani、M. Vasuki、S. Santhi
DOI:10.1002/kin.20570
日期:2011.9
The kinetics and mechanism of cyclization of the anionic sigma complex obtained from the reaction of 1,3,5‐trinitrobenzene (TNB) and 1‐benzyl‐1‐(ethoxycarbonyl)‐2‐propanone (BEP) in the presence of triethylamine (NEt3) have been studied in CH3CN–CH3OH (50% v/v). The order of the reaction has been found to be zero in TNB and BEP, unity in NEt3, and negative and nonintegral in triethylammonium chloride
Novel Coumarin Derivative Having Antitumor Activity
申请人:Iikura Hitoshi
公开号:US20110092700A1
公开(公告)日:2011-04-21
The present invention provides a compound represented by general formula (1) below or a pharmaceutically acceptable salt thereof:
wherein: X is selected from heteroaryl etc., Y
1
and Y
2
are selected from —N═ etc., Y
3
and Y
4
are selected from —CH═ etc., A is selected from sulfamide etc., R
1
is selected from hydrogen etc., and R
2
is selected from C
1-6
alkyl etc. The compound or salt has sufficiently high antitumor activity, and is useful in the treatment of cell proliferative disorders, particularly cancers. The present invention also provides a pharmaceutical composition containing the compound or salt as an active ingredient.