5629-45-8

Upstream product

• 7732-18-5 water 
• 121-33-5 vanillin 
• 5463-22-9 vanillil 
• 69887-33-8 1,1'-bis(3-methoxy-4-benzyloxy)-(E)-stilbene 
• 7329-69-3 (E)-3,3'-dimethoxy-4,4'-dihydroxystilbene 
• 5932-68-3 (E)-2-methoxy-4-(1-propenyl)phenol 
• 100-52-7 benzaldehyde 
• 64-17-5 ethanol 

Downstream Products

• 18256-53-6 4,4’-dihydroxy-3,3’-dimethoxybibenzyl 
• 7329-69-3 (E)-3,3'-dimethoxy-4,4'-dihydroxystilbene 
• 5463-22-9 vanillil 
• 40060-11-5 1,2-Bis-(3-formyl-4,5-dimethoxy-phenyl)-ethan 
• 40060-10-4 1,2-Bis-(3-formyl-4-hydroxy-5-methoxy-phenyl)-ethan 
• 40060-12-6 1,2-Bis-(4-acetoxy-3-allyl-5-methoxyphenyl)-ethan 
• 40218-59-5 1,2-Bis-(3-allyl-4,5-dimethoxyphenyl)-ethan 
• 40060-09-1 1,2-bis(4-(allyloxy)-3-methoxyphenyl)ethane 
• 40060-14-8 1,2-Bis-(3,4-dimethoxy-5-(1-propenyl)-phenyl)-ethan 
• 40060-13-7 1,2-Bis-(3-allyl-4-hydroxy-5-methoxyphenyl)-ethan 

Relevant academic research and scientific papers

Vanillin based polymers: I. An electrochemical route to polyvanillin

Electrochemical reductive polymerization of divanillin in aqueous sodium hydroxide using a lead cathode gives polyvanillin in 91% yield. The product was characterized by elemental analysis, UV-Vis, FT-IR, 1H, 13C NMR, TGA-DTGA, and GPC.

NOVEL 1,2-DIPHENYLETHYLENE GLYCOL COMPOUNDS FOR COMBATING AGING OF THE SKIN, AND COSMETIC USE THEREOF

The present invention relates to novel compounds of formula (I) to cosmetic compositions comprising same, and also to the use thereof for preventing and/or cosmetically treating the signs of aging of the skin.

Renewable thermosetting resins and thermoplastics from vanillin

Two cyanate ester resins and a polycarbonate thermoplastic have been synthesized from vanillin. The bisphenol precursors were prepared by both an electrochemical route as well as by a McMurry coupling reaction. 1,2-Bis(4-cyanato-3-methoxyphenyl)ethene (6) had a high melting point of 237 °C and did not cure completely under a standard cure protocol. In contrast, the reduced version, 1,2-bis(4-cyanato-3-methoxyphenyl)ethane (7) melted at 190 °C and underwent complete cure to form a thermoset material with Tg = 202 °C. 7 showed thermal stability up to 335 °C and decomposed via formation of phenolics and isocyanic acid. A polycarbonate was then synthesized from the reduced bisphenol by a transesterification reaction with diphenylcarbonate. The polymer had Mn = 3588, Mw/Mn = 1.9, and a Tg of 86 °C. TGA/FTIR data suggested that the polycarbonate decomposed via formation of benzodioxolones with concomitant elimination of methane. The results show that vanillin is a useful precursor to both thermosetting resins and thermoplastics without significant modification. This journal is

A convenient synthesis of unsymmetrical pinacols by coupling of structurally similar aromatic aldehydes mediated by low-valent titanium

The one-pot, selective cross pinacol-type couplings between two structurally similar aromatic aldehydes promoted by low-valent titanium generated unsymmetrical pinacols in moderate to good isolated yields in an erythrolthreo ratio of up to 91:9. This synt

Pinacol coupling of aromatic aldehydes and ketones using magnesium in aqueous ammonium chloride under ultrasound

The pinacol coupling reaction of aromatic aldehydes and ketones was performed in 8-95% yield with magnesium in 0.1 M aqueous NH4C1 under ultrasound irradiation at r.t. for 3 h.