767-87-3 Usage
Derivative of benzene
This compound is derived from benzene, which means it retains the basic benzene structure with added functional groups.
Ethynyl group
A triple-bonded ethynyl group (C≡CH) is attached to the first carbon of the benzene ring, giving the compound its unique properties.
Methyl groups
Two methyl groups (CH3) are attached to the second and third carbons of the benzene ring, which influences the compound's reactivity and stability.
Building block in organic synthesis
1-ethynyl-2,3-dimethyl-benzene is commonly used as a starting material for the synthesis of various organic molecules, such as pharmaceuticals, dyes, and polymers.
Industrial solvent
The compound serves as a solvent in certain industrial processes, due to its ability to dissolve a range of substances.
Physical properties
1-ethynyl-2,3-dimethyl-benzene is a colorless liquid with a sweet aromatic odor.
Flammability and hazard
The compound is considered to be flammable and hazardous, requiring proper handling and storage to minimize risks.
Check Digit Verification of cas no
The CAS Registry Mumber 767-87-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,6 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 767-87:
(5*7)+(4*6)+(3*7)+(2*8)+(1*7)=103
103 % 10 = 3
So 767-87-3 is a valid CAS Registry Number.
InChI:InChI=1/C10H10/c1-4-10-7-5-6-8(2)9(10)3/h1,5-7H,2-3H3
767-87-3Relevant articles and documents
Preparation method of dexmedetomidine hydrochloride and its intermediate
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Paragraph 0117; 0118; 0119; 0120; 0123, (2018/07/15)
The invention discloses a preparation method of dexmedetomidine hydrochloride and its intermediate. A preparation method of dexmedetomidine L-tartrate comprises the steps of subjecting dexmedetomidineintermediate III and hydrogen to reduction reaction in an organic solvent in the presence of a chiral catalyst, and subjecting the reduced product and tartaric acid to neutralization reaction to obtain dexmedetomidine L-tartrate II, wherein the chiral catalyst is (+)-1,2-bis(2S-5S)-diethylphospholano-benzene(1,5-cyclooctadiene)rhodium trifluoromethanesulfonate. The preparation method herein has ashort step path, has no need for chiral splitting, and has high total molar yield; the product prepared herein has high purity, reaches the standard for bulk pharmaceutical chemicals and is suitablefor industrial production.
