1,2–二甲基–1–环己烯与氢溴酸发生加成反应为什么更容易得到反式产物

海的沉默3452022-10-04 11:39:541条回答

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StillWaitHere 共回答了18个问题 | 采纳率88.9%
Br原子较大,若形成顺势 则空间张力太大不稳定
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  N,N-二甲基正辛胺 本品主要用作生产季铵化合物的中间体
  CAS NO.7378-99-6
  EINECS NO.230-939-3
  FORMULA CH3(CH2)7N(CH3)2
  MOL WT.157.30
  H.S.CODE
  TOXICITY
  Oral rat LD50:162 mg/kg
  SYNONYMS N,N-Dimethyl-N-octylamine; N,N-dimethyl-1-Octanamine;
  N,N-Dimethyloctylamine; 1-(Dimethylamino)octane;
  DERIVATION
  CLASSIFICATION
  PHYSICAL AND CHEMICAL PROPERTIES
  PHYSICAL STATE clear liquid
  MELTING POINT
  -57 C
  BOILING POINT 195 C
  SPECIFIC GRAVITY 0.765
  SOLUBILITY IN WATER
  pH
  VAPOR DENSITY
  REFRACTIVE INDEX
  1.4243
  NFPA RATINGS
  FLASH POINT 64 C
  STABILITY Stable under ordinary conditions
  APPLICATIONS
  octyldimethylamine is used as an intermediate for manufacturing quaternary ammonium compounds.
  (本品用作生产季铵化合物的中间体)
  SALES SPECIFICATION
  APPEARANCE
  clear liquid
  TERTIARY AMINE
  97.0% max
  PRIMARY AMINE
  0.5% max
  WATER
  0.5% max
  COLOR (APHA)
  30max
  ALKYL DISTRIBUTION
  C8 :97.0% min,C10 & Higher :2.0% max
  TRANSPORTATION
  PACKING
  HAZARD CLASS 8 (Paking group:II)
  UN NO.3267 or 1760