Patent ID: 8569518

Claim:
A compound of formula: wherein: R 3 and R 4 are independently a hydrogen atom, a C1-C6 alkyl group or a C2-C6 alkenyl group, R 5 is selected from the group consisting of methyl, ethyl, i-butyl, t-butyl, n-pentyl, a C2-C6 alkenyl group and a (CH 2 ) 0-2 -aryl group, R 6 is a C1-C6 alkyl group, a C2-C6 alkenyl group, a (CH 2 ) 0-2 -aryl group or a C5-C6 cycloalkyl or cycloalkenyl group, and R 7 is a hydrogen atom, a C1-C6 alkyl group or a C2-C6 alkenyl group; or R 3 , R 4 and R 5 are as above defined, and R 6 and R 7 together with the carbon atom to which they are attached form a C5-C6 cycloalkyl or cycloalkenyl group; with the proviso that said compound is not: 2,2-dimethyl-4-ethylhexahydrobenzo[1,3]dioxine 2,2-dimethyl-4-n-penthylhexahydrobenzo[1,3]dioxine 2,2-dimethyl-4-phenylhexahydrobenzo[1,3]dioxine 2,4-dimethylhexahydrobenzo[1,3]dioxine 2,4-diphenylhexahydrobenzo[1,3]dioxine 4-ethyl-2-methylhexahydrobenzo[1,3]dioxine 4-methyl-2-phenylhexahydrobenzo[1,3]dioxine 2,2,4-trimethylhexahydrobenzo[1,3]dioxine.