120749-17-9

Upstream product

• 18368-95-1 p-mentha-1,3,8-triene 

Downstream Products

• 99-82-1 Menthane 
• 3901-93-7 1-methyl-4-(1-methylethyl)cyclohexanol 
• 470-65-5 p-menthane-4-ol 
• 99-86-5 1-methyl-4-isopropyl-1,3-cyclohexadiene 
• 4031-37-2 cis-1-isopropyl-4-methylcyclohex-2-ene-1,4-diol 
• 75524-19-5 Acetic acid 2-acetoxy-4-isopropyl-1-methyl-cyclohex-3-enyl ester 
• 4031-37-2 trans-2-p-Menthene-1,4-diol 
• 1199-57-1 trans-3-p-Menthene-1,2-diol 
• 1199-57-1 (+/-) cis-p-menth-3-ene-1,2-diol 
• 1197-01-9 p-cymene-8-ol 
• 99-87-6 4-methylisopropylbenzene 
• 24302-23-6 p-menth-3-en-8-ol 
• 74545-77-0 4-Isopropyl-1-methyl-3-(2-p-tolyl-propenyl)-1-cyclohexene 
• 74545-76-9 4-Isopropyl-1-methyl-6-(2-p-tolyl-propenyl)-1-cyclohexene 

Relevant academic research and scientific papers

Photochemical reactions of P-mentha-13,8-triene and structural related P-menthadienes

The photochemical and thermal behaviour of cyclic olefins like p-mentha-1,3,8-triene (2) and structural related p-mentha-1,3- and -1,4-dienes under the influence of oxygen have been investigated. Dehydration, ring opening, (4+2)-cycloaddition of singlet oxygen1 and dimerization were observed as concurring mechanisms. The photochemical and thermal dehydrogenation of α-terpinene (1), α-phellandrene (3), γ-terpinene (4) and p-mentha-1,3,8-triene (2) leads to p-cymene (5) and p-cymenene (6), respectively. The mechanism of this aromatization reaction will be discussed in this paper.

OXYGENATED DERIVATIVES OF MENTHATRIENE IN PARSLEY LEAVES

The analysis of aroma volatiles of parsley revealed the presence of two novel oxygenated p-mentha-1,3,8-tiene derivatives, the amounts of which increase during processing of plant material and deteriorate the typical fresh aroma.The two derivatives, which could be synthesized by means of a dye sensitized photooxygenation reaction, were identified as 1-methyl-4(methylethenyl)-2,3-dioxabicyclooct-5-ene and 4-methyl-7-(methylethenyl)-3,8-dioxatricyclo2-4>octane.Key Word Index - Petroselinum crispum; Umbelliferae; parsley; aroma volatiles; p-mentha-1,3,8-triene; dioxetane; 1-methyl-4-(methylethenyl)-2,3-dioxabicyclooct-5-ene; diepoxide; 4-methyl-7-(methylethenyl)-3,8-dioxatricyclo2-4>octane.