4-Methyl-4-phenyl-1-pentanals, their preparation and their use a

Details 4-Methyl-4-phenyl-1-pentanals, their preparation and their use a 4-Methyl-4-phenyl-1-pentanals, their preparation and their use a

1988-05-17

1989-06-06

Lone, Werren B.

Perfume compositions

Perfume compositions

Oxygen containing active ingredient

568425, 568426, A61K 746, C07C 4752

Patent

active

048372013

ABSTRACT:
4-methyl-4-phenyl-1-pentanals of the general formula I ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl and R.sup.2 is hydrogen or methyl, with the exception of 4-methyl-4-phenyl-1-pentanal, and the use of the methylphenylpentanals of the formula I for imparting fragrance properties to, or improving or modifying the fragrance properties of, perfumes and perfumed products, and the preparation of these compounds by hydroformylation of the corresponding 3-methyl-3-phenyl-1-butenes of the general formula II ##STR2## and, if required, subsequent reaction with formaldehyde and partial hydrogenation.

REFERENCES:
patent: 4008276 (1977-02-01), Zenitz
patent: 4486607 (1984-12-01), Webb
patent: 4709109 (1987-11-01), Sperling et al.
Journal of Organic Chemistry, vol. 29, No. 7, pp. 1663-1669, Free-Radical Rearrangements, Jul. 13, 1964.
Arctander, Parfume and Flavor Chemicals, Montclair 1969, 2172 and 2204.
J. Am. Chem. Soc., vol. 65, pp. 1469-1471, Aug. 1943, Formation of Cyclopropanes from Monohalides. Whitmore et al.

Affiliated with

Also associated with

Rating

4-Methyl-4-phenyl-1-pentanals, their preparation and their use a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with 4-Methyl-4-phenyl-1-pentanals, their preparation and their use a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 4-Methyl-4-phenyl-1-pentanals, their preparation and their use a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-40632