752-24-9

Basic information

• Product Name: 3,4,3',4'-tetradehydro-β,β-carotene
• Synonyms: 3,4,3',4'-tetradehydro-β,β-carotene
• CAS NO: 752-24-9
• Molecular Weight: 532.853
• Mol File: 752-24-9.mol

Chemical Properties

• CAS DataBase Reference: 3,4,3',4'-tetradehydro-β,β-carotene(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4,3',4'-tetradehydro-β,β-carotene(752-24-9)
• EPA Substance Registry System: 3,4,3',4'-tetradehydro-β,β-carotene(752-24-9)

Safety Data

• Hazardous Substances Data: 752-24-9(Hazardous Substances Data)

Upstream product

• 56-23-5 tetrachloromethane 
• 128-08-5 N-Bromosuccinimide 
• 7235-40-7 beta-carotene 
• 92-53-5 4-Phenylmorpholine 
• 64-17-5 ethanol 
• 67-66-3 chloroform 
• 7488-99-5 (6'R)-β,ε-carotene 
• 771-29-9 1,2,3,4-tetrahydro-1-naphthyl hydroperoxide 
• 144-68-3 zeaxanthin 
• 127-40-2 lutein 
• 161023-01-4 β-carotene 
• 102020-73-5 2,6-dimethyl-8-(2,6,6-trimethyl-cyclohexa-1,3-dienyl)-octa-2,4,6-trienal 
• 4481-71-4 3,4,15,3',4',15'-hexadehydro-β,β-carotene 

Relevant articles and documents

Preparation method of all-trans beta-carotene

The invention discloses a preparation method of all-trans beta-carotene. The all-trans beta-carotene is obtained by carrying out an isomerization reaction on a carotene cis-trans isomer mixture in the presence of a catalyst and an assistant under nitrogen and dark conditions, wherein the catalyst is a platinum or ruthenium complex. The method has the advantages that isomerization time is short, temperature is low, the total trans content of the product is high, and a relatively good isomerization effect is achieved on a relatively wide range of cis-trans isomer mixtures.

Animal carotenoids. 31. Structure elucidation of a sponge metabolite via mesylate elimination.

The structure of a sponge metabolite from Microciona prolifera, previously considered to be (6S)-2,3-didehydro- or 3,4-didehydro-gamma, chi-carotene, has been further studied. Attempted total synthesis of the 3,4-didehydro derivative provided the hitherto unknown gamma, chi-carotene, the synthesis of which is described. Hydrolysis of lutein methanesulfonate diester (dimesylate) gave elimination products possessing the 3,4-didehydro gamma end-group. 1H NMR data for this gamma end-group were identical with those for the sponge carotenoid. The mesylate elimination reaction described may mimic the metabolic formation of the 3,4-didehydro-gamma-carotenoid end-group. In connection with other investigations on functionalized carotenoids we further report the preparation of zeaxanthin and lutein mesylates and their base-catalyzed elimination reactions. SN2 type substitution reactions of zeaxanthin dimesylate with appropriate nucleophiles did not produce beta, beta-carotene, zeaxanthin diacetate or thiozeaxanthin.