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6-溴-1,4-二氧杂螺[4.4]壬-6-烯 | 68241-78-1

中文名称
6-溴-1,4-二氧杂螺[4.4]壬-6-烯
中文别名
——
英文名称
6-bromo-1,4-dioxa-spiro[4.4]non-6-ene
英文别名
2-bromo-2-cyclopentenone ethylene ketal;6-Bromo-1,4-dioxaspiro[4.4]non-6-ene;9-bromo-1,4-dioxaspiro[4.4]non-8-ene
6-溴-1,4-二氧杂螺[4.4]壬-6-烯化学式
CAS
68241-78-1
化学式
C7H9BrO2
mdl
——
分子量
205.051
InChiKey
YRXLQJUTOBAVNV-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    1.1
  • 重原子数:
    10
  • 可旋转键数:
    0
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.71
  • 拓扑面积:
    18.5
  • 氢给体数:
    0
  • 氢受体数:
    2

SDS

SDS:c8f5569f4901596d11bdf67ba74320fe
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上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

点击查看最新优质反应信息

文献信息

  • A Convenient Procedure for the Synthesis of Acetals from α-Halo Ketones
    作者:Rolf Carlson、Hanna Gautun、Andreas Westerlund
    DOI:10.1002/1615-4169(200201)344:1<57::aid-adsc57>3.0.co;2-0
    日期:2002.1
    and (B) stoichiometric amounts of the reactants and a catalytic amount of Nafion®-TMS were heated to 90–100 °C in the absence of solvent. The following ketones have been tested: 2-bromo-1-phenyl-1-ethanone, 2-bromo-cyclopentenone, 3-bromo-3-methyl-2-butanone, 3-chloro-3-methyl-2-butanone, 1-bromo-3,3-dimethyl-2-butanone, 1-chloro-3,3-dimethyl-2-butanone, 2-bromocyclohexanone, 2-chloro-1-cyclohexyl-1-ethanone
    提出了确定卤代酮合成乙缩醛的方法的范围和局限性的研究。该方法使用1,2-双(三甲基硅氧基)乙烷,BTSE,如试剂和Nafion ® -TMS作为催化剂。两个过程都进行了测试:(A)化学计量的量的卤代酮和BTSE和Nafion的催化量的® -TMS物加热至回流的氯仿溶液中,和(B)的化学计量量的反应物和Nafion的催化量的®在没有溶剂的情况下,将-TMS加热至90–100°C。已测试以下酮:2-溴-1-苯基-1-乙酮,2-溴-环戊烯酮,3-溴-3-甲基-2-丁酮,3-氯-3-甲基-2-丁酮,1 -溴-3,3-二甲基-2-丁酮,1-氯-3,3-二甲基-2-丁酮,2-溴环己酮,2-氯-1-环己基-1-乙酮,1,1-二溴-3 ,3-二甲基-2-丁酮,1,3-二溴-3-甲基-2-丁酮,1,3-二溴-2-丁酮,1,3-二溴-2-丙酮,2-氯-1-苯基-1-乙酮和内-2-溴樟脑。除内标外,产率在57–
  • Five- and six–membered cyclic α-acylvinyl anionic synthons: synthesis of α-trimethylsilyl-α,β-unsaturated cycloalkenones and their conversion into 2-(hydroxydimethylsilyl)cycloalk-2-enones through carbon–silicon bond scission
    作者:Divya Jyothi、HariPrasad Suresh
    DOI:10.3998/ark.5550190.0013.618
    日期:——
    Five- and six-membered I±-trimethylsilyl-I±,I²-unsaturated cycloalkenones were prepared by the Wurtz-Fittig coupling reaction of the corresponding 6-bromo-1,4-dioxaspiro4,ncycloalk-6-enes with sodium and chlorotrimethylsilane. Upon treatment with anhydrous AlCl3, the compounds underwent carbon-silicon bond scission to yield a novel class of compounds: the 2-(hydroxydimethylsilyl)cycloalk-2-enones.
    五元和六元 I±-trimethylsilyl-I±,I²-不饱和环烯酮是通过相应的 6-bromo-1,4-dioxaspiro4,ncycloalk-6-enes 与钠和氯三甲基硅烷的 Wurtz-Fittig 偶联反应制备的。用无水 AlCl3 处理后,这些化合物发生碳-硅键断裂,产生一类新的化合物:2-(羟基二甲基甲硅烷基)环烷-2-烯酮。© ARKAT-USA, Inc.
  • Palladium-catalyzed Trimerization of Strained Cycloalkynes: Synthesis of Decacyclene
    作者:Beatriz Iglesias、Diego Peña、Dolores Pérez、Enrique Guitián、Luis Castedo
    DOI:10.1055/s-2002-20473
    日期:——
    Palladium-catalyzed cyclotrimerization was applied to three strained cycloalkynes. Pd(PPh 3 ) 4 and Pt(PPh 3 ) 4 -catalyzed cyclotrimerizations of cyclohexyne (2) afforded dodecahydrotriphenylene (3) in 64% and 62% yields, respectively, but subjecting cyclopentyne to the same conditions failed to afford isolable amounts of the cyclotrimer. Finally, decacyclene (15), a putative C 6 0 -fullerene precursor
    钯催化的环三聚反应应用于三个紧张的环炔烃。Pd(PPh 3 ) 4 和 Pt(PPh 3 ) 4 催化的环己炔 (2) 的环三聚反应分别以 64% 和 62% 的产率提供了十二氢三亚苯 (3),但将环戊炔置于相同条件下未能提供可分离量的环三聚体。最后,十环烯 (15),一种推定的 C 6 0 -富勒烯前体,通过 Pd 2 (dba) 3 催化的苊 (14) 环三聚反应以 23% 的产率获得。
  • Enantioselective construction of the tricyclic core of curcusones A–D <i>via</i> a cross-electrophile coupling approach
    作者:Austin C. Wright、Brian M. Stoltz
    DOI:10.1039/c9sc04127c
    日期:——
    Herein we report our recent progress toward the enantioselective total synthesis of the diterpenoid natural products curcusones A–D by means of complementary Stetter annulation or ring-closing metathesis (RCM) disconnections. Using the latter approach, we have achieved the concise construction of the 5–7–6 carbocyclic core embedded in each member of the curcusone family. Essential to this route is
    本文中,我们报告了通过互补的Stetter环合或闭环复分解(RCM)断开,对二萜类天然产物Curcusones A-D进行对映选择性全合成的最新进展。使用后一种方法,我们实现了将5–7–6碳环核嵌入在Curcusone系列的每个成员中的简洁构造。该途径的关键是使用亲电交叉偶联策略,该策略以前在天然产物合成中尚未得到利用。
  • Small-Scale Procedure for Acid-Catalyzed Ketal Formation
    作者:Austin C. Wright、Yun Emily Du、Brian M. Stoltz
    DOI:10.1021/acs.joc.9b01541
    日期:2019.9.6
    A modified procedure for dehydrative ketal protections is disclosed, which serves as an alternative to the classic Dean–Stark protocol. Studies show that this new procedure can outperform the Dean–Stark apparatus on small scales and thus serves as a complementary approach to effect dehydrative ketalizations. A detailed procedure for this apparatus is presented.
    公开了一种用于脱水缩酮保护的改良方法,该方法可替代经典的Dean-Stark方案。研究表明,这种新方法在小规模上可胜过Dean–Stark仪器,因此可作为实现脱水缩酮化的一种补充方法。给出了该设备的详细过程。
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