[reaction: see text] Elusive nitroaceticacidesters and amides were obtained through a halogen exchange reaction of the corresponding bromoacetic acid derivatives with polymer-supported nitrite anion. The process is flawed by a side product catalyzed degradation of the products. Domino processes turned out to be a powerful tool for overcoming such drawbacks, converting a substandard reaction into
Process for the preparation of chiral azetidinones
申请人:Framroze Patel Bomi
公开号:US20070129540A1
公开(公告)日:2007-06-07
Processes for preparing compounds of formula I are disclosed comprising the steps of:
(a) forming of chiral propionic acid ester compounds of formula V.
(b) reacting compounds of formula V with aniline compounds to yield compounds of formula I
申请人:Board of Trustees of Northern Illinois University
公开号:US20210093531A1
公开(公告)日:2021-04-01
A compound that includes a menthol glycinate. The menthol glycinate includes a menthol connected to a glycine or glycine derivative, via an ester linkage. The groups on the N atom are referred to as R
1
and R
2
, and R
1
and R
2
are independently selected from the group consisting of: H, alkyl and R
1
and R
2
together with the N atom to which they are attached form a 4-8-member ring. R
1
and R
2
each contain at most 20 carbon atoms.
[EN] DENTOTROPIC CONJUGATES AND COMPOSITIONS AND METHODS OF USE THEREOF<br/>[FR] CONJUGUÉS ET COMPOSITIONS DENTOTROPES ET LEURS PROCÉDÉS D'UTILISATION
申请人:UNIV NEBRASKA
公开号:WO2014062913A1
公开(公告)日:2014-04-24
Compositions and methods for targeting agents, particularly a flavoring, fragrant, or cooling agent such as menthol, to tooth are provided. The success of delivering biologically active agents to the oral cavity has been largely limited by the fact that most of them do not have any tooth targeting specificity and do not maintain an effective concentration on the tooth surface.
Compounds derived from menthol and use as refreshing agent
申请人:Firmenich SA
公开号:US06359168B1
公开(公告)日:2002-03-19
Compounds of formula (I)
in which R=H or CH3 and n is a whole number from 1 to 4. These compounds are useful as refreshing agents in various compositions, articles or products from flavor manufacture or perfumery.