benzofurans如何读 英[ˌbenzəʊˈfjʊəræn]美[ˈbenzɔːfrən] benzofurans是什么意思 苯呋喃类 benzofurans英英释义 n.a colorless oily compound extracted from coal tar and used in manufacturing synthetic resins benzofurans词源英文解释 benz- + furan 相关词 snow ...
The meaning of BENZOFURAN is coumarone.
必应词典为您提供benzofurans的释义,网络释义: 苯呋喃类;苯并呋喃类;苯喃;
Benzofurans式I的苯并呋喃及其盐(见化学式),其中R The benzofuran of formula I and salts thereof (see formula), wherein RA·巴斯B·海尔福特H·博特彻尔K·舒斯特
benzofuran (redirected fromBenzofurans) Thesaurus Related to Benzofurans:coumarone ben·zo·fu·ran (bĕn′zō-fyo͝or′ăn′, -fyo͝o-răn′) n. A colorless liquid, C8H6O, found in coal tar and used to make thermoplastic resins for paints and varnishes. Also calledcoumarone. ...
Benzofurans of the formula <IMAGE> are produced by (A) reacting at or about reflux temperature in the presence of a strong base (pKa>/=14) and a high boiling solvent (>/=100 DEG C): <IMAGE> wherein, R<1>, R<2>, R<3> and R<4> are hydrogen or electron releasing groups R<...
benzofuransmetalpotsynthesisarylationdiaryliodonium &SyntheticMethods Metal-FreeOne-PotSynthesisofBenzofurans RajuGhosh,ElinStridfeldt,andBeritOlofsson* [a] Abstract:Ethylacetohydroxamatewasefficientlyarylated withdiaryliodoniumsaltsatroomtemperatureundertran- sition-metal-freeconditions.TheobtainedO-arylated productswe...
Synthesis of dihydrobenzofurans was achieved by a route involving the insertion of arynes into formamides followed by trapping with zinc enolates of alpha-chlorinated methines. Benzofurans were generated from dihydrobenzofurans having a ketone group via the addition of an ethyl anion, the retro...
A FORMULA COMPOUND (I) IN WHICH R 1 AND R 2, WHICH CAN BE EQUAL OR DIFFERENT, IS HEREBY, REPRESENTS H, RENT C 1-6, CYCALALKYL C 3-7 OR ARILO; R 3 AND R 4, WHICH MAY BE EQUAL OR DIFFERENT, REPRESENT H, HALOGEN, C 1-6 RENT OR SUBSTITUTED ARILO; R 5 REPRESENTS H OR ...
Title: Novel Benzofurans and Indols United States Patent Application 20080119485 Kind Code: A1 Abstract: Compounds of formula (I) wherein X is a fluorine or a chlorine atom; the methyl groups located at the 2- and 5-position of the piperazine ring are in trans-configuration to each other...