Fragrance functional groups

Question 1

Define terpenes

Answer 1

hydrophobic hydrocarbon s built off 5 carbon isoprene units

Question 2

Define terpenoids

Answer 2

derived from terpenes but contain oxygen groups

Question 3

how many isoprene units in a monoterpene?

Answer 3

2

Question 4

how many isoprene units in a diterpene?

Answer 4

4

Question 5

most important terpene in perfume family?

Answer 5

oxygenated monoterpenes

Question 6

Lavender terpene?

Answer 6

linalool

Question 7

natural fragrances more likely to only be

Answer 7

only one isomer

Question 8

list 5 key monoterpenes

Answer 8

geraniol/nerol, linalool, citronelol, citronelal, citral

Question 9

list 2 feedstocks for monoterpenes?

Answer 9

wood pulp by products, petroleum industry sources

Question 10

monoterpene stability issues due to..

Answer 10

double bonds

Question 11

functional group on citronelal?

Answer 11

aldehyde

Question 12

functional group on citronelol?

Answer 12

alcohol

Question 13

Functional group on geraniol?

Answer 13

alcohol

Question 14

Functional group of citral?

Answer 14

aldehyde

Question 15

names of 2 citral isomers?

Answer 15

geranial (E trans) and neral (Z cis)

Question 16

list 3 important cyclic monoterpenoids

Answer 16

carvone, terpineol, menthol

Question 17

what smell is associated with R- limonene?

Answer 17

citrus oranges/limon

Question 18

what smell is associated with S- limonene?

Answer 18

Piny/minty

Question 19

what smell is associated with R-(–)-carvone?

Answer 19

sweetish minty smell

Question 20

what smell is associated with S-(+)-carvone

Answer 20

spicy aroma with notes of rye

Question 21

What is has a greater environmental impact; menthol extracted from crop or synthetic from fossil fuel?

Answer 21

extracted from crop.