英文名2,3-dihydrofuran 中文别名二羟基呋喃|2,3-二氯呋喃|二氢呋喃|2,3-二呋喃|2,3-二羟基呋喃|2,3-二氢呋 英文别名更多 2,3-二氢呋喃物理化学性质 密度1.0±0.1 g/cm3 沸点54.5±0.0 °C at 760 mmHg 分子式C4H6O 分子量70.090 闪点-24.4±0.0 °C ...
5.3.2.2 Di- and Tetrahydrofurans A chiral 2,3-dihydrofuran derivative, as depicted below, underwent a Ferrier-type rearrangement with chiral or achiral allenylsilanes to generate 2,5-trans-disubstituted 2,5-dihydrofurans with high diastereoselectivity〈10OL4624〉. Sign in to download full-size ima...
2,3-Dihydrobenzofurans and indolines are common substructures in medicines and natural products. Herein, we describe a method that enables direct access to these core structures from non-conjugated alkenyl amides and ortho-iodoanilines/phenols. Under pal
MANGANESE(III) ACETATE AND CERIUM(IV) AMMONIUM NITRATE MEDIATED OXIDATIVE RADICAL ADDITIONS OF ß-DIKETONES AND ß-KETOESTERS TO LIMONENE: CHEMO AND REGIOSPECIFIC PREPARATION OF 2,3-DIHYDROFURANS Marcio C S. de Mattos*3, Soraia P L. de Souza3 and SimoneΜ. Eliasb "Institute) de Quimica...
Part 2. Synthesis of 2‐[2‐(Alkylsulfanyl)‐5‐amino‐2‐aryl‐4‐cyano‐2,3‐dihydrofuran‐3‐ylidene] propanedinitriles by Reactions with Thiols. ChemInform Abstract: 5‐Amino‐3‐imino‐2,3‐dihydrofurans and 3‐Amino‐5‐imino‐2,5‐ dihydrofurans from 4,4‐Dialkyl‐4‐hydroxybut‐...
2,3-Dihydrofuran is a highly reactive vinyl ether and undergoes a wide range of addition reactions. Both 2,3-dihydrofuran and 2,3-dihydrothiophene are converted into a [2 + 2] cycloadduct on treatment with tetracyanoethylene under mild conditions (Scheme 90) 〈80AG(E)831, 80AG(E)832〉...
品牌:毕得 规格: 5g/瓶 - 95% 编码: 15295-77-9 CAS 编码: 15295-77-9 价格:¥739.20/ 瓶 数量 - + 瓶 保障正品保障增票服务 * 本链接展示、销售的所有产品均不得用于人类或者动物临床诊断或治疗,仅用于工业或者科研等非医疗目的 ...
2.Benzoyl-3一f2.chloropheny1).4.tosy1.5.meth y1.trans.2.3. dihydrofuran (3A d):m.P.192_3— 192.5 。C: H NMR rCDCl1。 300 MHz), :2.36(s,3H),2.44(d,J= 1. 37 Hz,3H),5.02(brs, 1H),5.63(brs,1H),7.04— 7.78(m,13H);IR(KBr),9/cm- : 1683,1636,1597,1492,13 13...
tricyclic furo[3,2-c][2]benzazepine and respectively pyrano[3,2一c][2]benzazepine derivativeswith 2 3-dihydrofuran or 3 4-dihydro一2H-pyran as reagents,andprovide 2 3-dihydro一1H-benzazepines with ethylvinyl ether.When benzyl iminiumionsreacted ...
摘要: Isocyanides react smoothly with dimethyl acetylenedicarboxylate in the presence of hexachloroacetone to produce dimethyl...关键词: Three-component reaction Isocyanide Hexachloroacetone Iminofurane 2,5-Dihydrofurans DOI: 10.1007/s00706-007-0810-3 ...