34140-20-0

Basic information

• Product Name: 5,8-dihydro-7H-[1,3]dioxolo[4,5-g]isochromen-7-one
• CAS NO: 34140-20-0
• Molecular Formula: C₁₀H₈O₄
• Molecular Weight: 192.1681
• Mol File: 34140-20-0.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 425.4°C at 760 mmHg
• Flash Point: 196.5°C
• Density: 1.423g/cm³
• Vapor Pressure: 1.91E-07mmHg at 25°C
• Refractive Index: 1.602
• CAS DataBase Reference: 5,8-dihydro-7H-[1,3]dioxolo[4,5-g]isochromen-7-one(CAS DataBase Reference)
• NIST Chemistry Reference: 5,8-dihydro-7H-[1,3]dioxolo[4,5-g]isochromen-7-one(34140-20-0)
• EPA Substance Registry System: 5,8-dihydro-7H-[1,3]dioxolo[4,5-g]isochromen-7-one(34140-20-0)

Safety Data

• Hazardous Substances Data: 34140-20-0(Hazardous Substances Data)

Upstream product

• 50-00-0 formaldehyd 
• 5661-47-2 (1,3-benzodioxol-5-ylmethyl)-amide 
• 2861-28-1 1,3-benzodioxole-5-acetic acid 
• 63807-94-3 6-ethoxycarbonylmethyl-benzo[1,3]dioxole-5-carboxylic acid 
• 60546-62-5 6-bromopiperonylic acid 
• 4439-02-5 3,4-methylenedioxyphenylacetonitrile 
• 124619-18-7 (6-Methoxymethyl-benzo[1,3]dioxol-5-yl)-acetonitrile 

Downstream Products

• 132813-92-4 C₂₀H₁₃NO₆ 
• 72584-21-5 2-(3',4'-Dimethoxy-β-phenethyl)-6,7-methylenedioxy-1,2,3,4-tetrahydro-3-isoquinolone 
• 144-62-7 oxalic acid 
• 116120-11-7 N-(2,3-Dimethoxy-benzyl)-2-(6-hydroxymethyl-benzo[1,3]dioxol-5-yl)-acetamide 

Relevant articles and documents

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Preparation of Novel 4-Substituted 6-Methoxy, 6,7-Dimethoxy-, and 6,7-(Methylenedioxy)isochroman-3-ones. 2

The title compounds 20, 21, and 22 have been prepared in modest yields by a two-step reaction involving first the reaction of bromoarenes 3, 7, and 8 with lithioalkyl- and lithioarylacetonitriles under aryne-forming conditions.The cyano products 10, 14, and 16 so formed were then converted to the corresponding isochroman-3-ones by acidic hydrolysis.

A NOVEL SYNTHESIS OF BERBINES - SYNTHESIS OF (2,3)(10,11)-BIS(METHYLENEDIOXY)BERBINE BY USE OF A LACTONE

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