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2,4,4-trimethyl-2',4',5',6,7-pentahydroxyflavan | 128187-69-9

中文名称
——
中文别名
——
英文名称
2,4,4-trimethyl-2',4',5',6,7-pentahydroxyflavan
英文别名
5-(6,7-dihydroxy-2,4,4-trimethyl-3H-chromen-2-yl)benzene-1,2,4-triol
2,4,4-trimethyl-2',4',5',6,7-pentahydroxyflavan化学式
CAS
128187-69-9
化学式
C18H20O6
mdl
——
分子量
332.353
InChiKey
MKWIJTVXYZGJQL-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):
    3.1
  • 重原子数:
    24
  • 可旋转键数:
    1
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.33
  • 拓扑面积:
    110
  • 氢给体数:
    5
  • 氢受体数:
    6

文献信息

  • A rubber composition and a vulcanizing adhesion method using the same
    申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
    公开号:EP0700959A1
    公开(公告)日:1996-03-13
    A rubber composition (1) which comprises:    a rubber (A) such as natural rubber, isoprene rubber and the like;    a hydroxy flavan compound (B1) of the formula (I): wherein R¹, R, R³, R⁴ and R⁵ are hydrogen or an aliphatic group and X and Y are hydrogen, hydroxy or an aliphatic group, such as 2,4,4-trimethyl-2',4',7-trihydroxyflavan (B2); and 2,2,4-trimethyl-1,2-dihydroquinoline polymer (C1) containing 1% or less by weight of a primary amine, 3% or less by weight of the monomer and 30% or more by weight of the dimer based on the total weight of the polymer, or a cromane compound (C2) which may be a novel cromane compound.
    一种橡胶组合物(1),包括:   橡胶(A),例如天然橡胶异戊二烯橡胶等;   一种羟基黄酮化合物(B1),其化学式为(I):其中R¹、R、R³、R⁴和R⁵为氢或脂肪基,X和Y为氢、羟基或脂肪基,例如2,4,4-三甲基-2',4',7-三羟基黄酮(B2);以及含有1%或更少的一级胺,3%或更少的单体和30%或更多的二聚体的2,2,4-三甲基-1,2-二氢喹啉聚合物(C1),基于聚合物的总重量,或者是一种可为新型的环己烯化合物(C2)。
  • A rubber composition and a method for producing a vulcanized rubber
    申请人:SUMITOMO CHEMICAL COMPANY LIMITED
    公开号:EP0672713A1
    公开(公告)日:1995-09-20
    A method for producing a vulcanized rubber in which a flavan compound of the formula (I) wherein R¹, R², R⁴ and R⁵ independently of one another are hydrogen or an aliphatic group having 1-6 carbon atoms, or R¹ and R², and/or R⁴ and R⁵, may form an alicyclic ring having 4-10 carbon atoms in combination, R³ is hydrogen or an aliphatic group having 1-6 carbon atoms, and X and Y independently of one another are hydrogen, hydroxy or an aliphatic group having 1-8 carbon atoms; is compounded to rubber in a kneading step at a high temperature and a rubber composition which comprises the flavan compound together with cobalt carbonate or an organic cobalt compound and a methylene donor: and the vulcanized rubber produced through the method or from the rubber composition exhibits excellent rubber properties such as high hardness and free from fuming problem.
    一种生产化橡胶的方法,其中含有式 (I) 的黄烷化合物 其中 R¹、R²、R⁴ 和 R⁵ 相互独立地为氢或具有 1-6 个碳原子的脂肪族基团,或 R¹ 和 R²,和/或 R⁴ 和 R⁵ 可结合形成具有 4-10 个碳原子的脂环,R³ 为氢或具有 1-6 个碳原子的脂肪族基团,X 和 Y 相互独立地为氢、羟基或具有 1-8 个碳原子的脂肪族基团;在高温下,通过捏合步骤将黄烷化合物与碳酸钴或有机化合物及亚甲基供体复合成橡胶:以及通过该方法或由该橡胶组合物生产的化橡胶具有优异的橡胶性能,例如高硬度和无发烟问题。
  • US5665799A
    申请人:——
    公开号:US5665799A
    公开(公告)日:1997-09-09
  • US5688871A
    申请人:——
    公开号:US5688871A
    公开(公告)日:1997-11-18
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