57671-19-9

Basic information

• Product Name: 1,8-DIAZABICYCLO[5.4.0]UNDEC-7-ENE, COMPOUND WITH PHENOL (1:1)
• Synonyms: 1,8-DIAZABICYCLO[5.4.0]UNDEC-7-ENE, COMPOUND WITH PHENOL (1:1);Phenol,compoundwith2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine(1:1);Phenol, compd. with 2,3,4,6,7,8,9,10-octahydropyrimido1,2-aazepine (1:1);1,8-diazabicyclo[5.4.0]undec-7-ene, compound with phenol;Phenol,compound with 2,3,4,6,7,8,9,10-octahydropyrimido [1,2-a]azepine;1,8-Diazabicyclo[5.4.0]undec-7-ene phenolate;1,8-Diazabicyclo[5.4.0]undec-7-ene phenol salt
• CAS NO: 57671-19-9
• Molecular Formula: C₆H₆O*C₉H₁₆N₂
• Molecular Weight: 246.35
• Mol File: 57671-19-9.mol
• Article Data: 3

Chemical Properties

• Flash Point: 230 °F
• Appearance: /
• Density: 1.062 g/mL at 25 °C(lit.)
• CAS DataBase Reference: 1,8-DIAZABICYCLO[5.4.0]UNDEC-7-ENE, COMPOUND WITH PHENOL (1:1)(CAS DataBase Reference)
• NIST Chemistry Reference: 1,8-DIAZABICYCLO[5.4.0]UNDEC-7-ENE, COMPOUND WITH PHENOL (1:1)(57671-19-9)
• EPA Substance Registry System: 1,8-DIAZABICYCLO[5.4.0]UNDEC-7-ENE, COMPOUND WITH PHENOL (1:1)(57671-19-9)

Safety Data

• Hazard Codes: Xn
• Statements: 22-36/38
• Safety Statements: 26
• WGK Germany: 3
• Hazardous Substances Data: 57671-19-9(Hazardous Substances Data)

Usage

Description

Used in Chemical Reactions:
1,8-DIAZABICYCLO[5.4.0]UNDEC-7-ENE, COMPOUND WITH PHENOL (1:1) is used as a catalyst or reagent in chemical reactions for its ability to facilitate specific transformations and improve reaction efficiency. The combination of DBU's basic properties and phenol's reactivity can enhance the overall performance of the reaction.
Used in Pharmaceutical Industry:
1,8-DIAZABICYCLO[5.4.0]UNDEC-7-ENE, COMPOUND WITH PHENOL (1:1) is used as an intermediate or active pharmaceutical ingredient in the development of new drugs. The unique properties of DBU and phenol can contribute to the synthesis of novel compounds with potential therapeutic effects.
Used in Industrial Processes:
It is crucial to handle and use 1,8-DIAZABICYCLO[5.4.0]UNDEC-7-ENE, COMPOUND WITH PHENOL (1:1) in accordance with safety guidelines and regulations to ensure the safety of both the environment and the individuals involved in its production and application.

Upstream product

• 6674-22-2 1,8-diazabicyclo[5.4.0]undec-7-ene 
• 108-95-2 phenol 

Relevant articles and documents

Protic ionic liquid-promoted synthesis of dimethyl carbonate from ethylene carbonate and methanol

In this work, the protic ionic liquid [DBUH][Im] (1,8-diazabicyclo[5.4.0]-7-undeceniumimidazolide) was developed as an efficient catalyst for the transesterification of ethylene carbonate with methanol to produce dimethyl carbonate. At 70 °C, up to 97% conversion of ethylene carbonate and 91% yield of dimethyl carbonate were obtained with 1 mol% [DBUH][Im] (relative to ethylene carbonate) as catalyst in 2 h. Even at room temperature, the conversion of ethylene carbonate can reach 94% and the yield of dimethyl carbonate can approach 81% for 6 h. Catalytic mechanism investigation showed the high catalytic efficiency of this ionic liquid results from the synergistic activation effect, wherein the cation can activate ethylene carbonate and the anion can activate methanol through hydrogen bond formation. Although the reusability of the ionic liquid need to be further improved, high efficiency and commercial availability of [DBUH][Im] render it a promising catalyst for the preparation of dimethyl carbonate.

METHODS OF DEPOLYMERIZING TEREPHTHALATE POLYESTERS

A method comprises forming a reaction mixture comprising a terephthalate polyester, a glycol comprising 2 to 5 carbons, and an amidine organocatalyst; and heating the reaction mixture at a temperature of about 120° C. or more to depolymerize the terephthalate polyester, thereby forming a terephthalate reaction product comprising a monomeric dihydroxy terephthalate diester; wherein the terephthalate reaction product contains terephthalate oligomers in an amount less than the amount of terephthalate oligomers that would result from i) substituting the amidine organocatalyst with an equimolar amount of a guanidine catalyst and ii) depolymerizing the terephthalate polyester under otherwise identical reaction conditions.