26164-08-9

Basic information

• Product Name: 3,4-dihydro-4-methyl-1H-2-benzopyran
• Synonyms: 3,4-dihydro-4-methyl-1H-2-benzopyran;4-Methyl-isochroman
• CAS NO: 26164-08-9
• Molecular Formula: C₁₀H₁₂O
• Molecular Weight: 148.20168
• EINECS: 247-490-4
• Mol File: 26164-08-9.mol
• Article Data: 7

Chemical Properties

• Boiling Point: 234.7 °C at 760 mmHg
• Flash Point: 91.3 °C
• Appearance: /
• Density: 1.006 g/cm³
• Vapor Pressure: 0.0797mmHg at 25°C
• Refractive Index: 1.519
• CAS DataBase Reference: 3,4-dihydro-4-methyl-1H-2-benzopyran(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4-dihydro-4-methyl-1H-2-benzopyran(26164-08-9)
• EPA Substance Registry System: 3,4-dihydro-4-methyl-1H-2-benzopyran(26164-08-9)

Safety Data

• Hazardous Substances Data: 26164-08-9(Hazardous Substances Data)

Usage

InChI:InChI=1/C10H12O/c1-8-6-11-7-9-4-2-3-5-10(8)9/h2-5,8H,6-7H2,1H3

Upstream product

• 87280-01-1 1-((allyloxy)methyl)-2-bromobenzene 
• 13662-20-9 PhCH(Me)CH₂OMOM 
• 1123-85-9 (RS)-2-phenyl-1-propanol 
• 1217293-64-5 (+/-)-[1-[(2-methoxyethoxy)methoxy]propan-2-yl]benzene 
• 50-00-0 formaldehyd 

Downstream Products

• 409334-01-6 2-(2-bromo-1-methylethyl)benzaldehyde 
• 4175-53-5 trans-1,3-dimethyl-indane 
• 1352941-26-4 1-(4-methoxyphenyl)-4-methylisochroman 
• 84810-47-9 cis-3,4-dihydro-1-phenyl-4-methyl-1H-2-benzopyran 
• 84810-46-8 trans-3,4-dihydro-1-phenyl-4-methyl-1H-2-benzopyran 

Relevant articles and documents

A new tetradentate nitrogen ligand for organometallic catalysis: electrochemical nickel-catalyzed intramolecular cyclization

The new tetraaza-molecule, 1 has been synthesized and used as a ligand for a cationic mononuclear nickel(II) complex.This complex is an efficient catalysts for the intramolecular electrochemical cyclization of o-haloaryl compounds containing unsaturated side chains. - Keywords: Nitrogen ligand; Tetradentate; Nickel catalysis; Intramolecular cyclization

Merging Photoredox with Br?nsted Acid Catalysis: The Cross-Dehydrogenative C?O Coupling for sp3 C?H Bond Peroxidation

A photoredox and Br?nsted acid synergistically catalyzed cross-dehydrogenative C?O coupling reaction is developed in which isochroman peroxyacetals are formed through sp3 C?H bond peroxidation. The reported method is characterized by its extremely mild reaction conditions, excellent yields, and broad substrate scope. An oxocarbenium ion p-chlorobenzenesulfonate was speculated to be the reactive intermediate. The role of hemiacetals and oxygenated dimers on the effective stabilization of the oxocarbenium ion was investigated; the presence of acid appeared to establish equilibrium between hemiacetals and oxygenated dimers with the oxocarbenium ion pairs. The broad applicability of the method highlights the potential of the protocol for molecule synthesis.

Synthesis of Chiral 3-Alkyl-3,4-dihydroisocoumarins by dynamic kinetic resolutions catalyzed by a Baeyer-Villiger Monooxygenase

"Chemical Equation Presented" Baeyer-Villiger monooxygenases have been tested, in the oxidation of racemic benzofused ketones. When employing a single mutant of phenylacetone monooxygenase (M.446G PAMO) under the proper reaction conditions, it was possible to achieve 3-substituted 3,4-dihydroisocoumarins with, high yields and optical purities through regioselective dynamic kinetic resolution processes.

Electrochemical Intramolecular Reductive Cyclisation Catalysed by Electrogenerated Ni(cyclam)(2+)

The intramolecular cyclisation of a series of o-halogenated aromatic compounds containing unsaturated side-chains has been developed using electrosynthesis, combined with organometallic catalysis by Ni(cyclam)Br2.