The invention provides radical addition of ketone to alkene of the form:
where
R1 = alkyl
R2 = H or alkyl
n = 1 to 8
or
where
R3 = H or lower alkyl
R4 = H or lower alkyl
m = 2 to 8.
The process can be used to produce precursors useful in the production of macrocyclic ketones, particularly muscone.
Ruzicka, Helvetica Chimica Acta, 1926, vol. 9, p. 1017
作者:Ruzicka
DOI:——
日期:——
PREPARATION OF MACROCYCLIC KETONES UTILISING ADDITION OF KETONES TO ALKENES
申请人:QUEST INTERNATIONAL B.V.
公开号:EP1102736A2
公开(公告)日:2001-05-30
SOLID CATALYST FOR OLEFIN POLYMERIZATION AND PROCESS FOR PRODUCING OLEFIN POLYMER
申请人:Sumitomo Chemical Company, Limited
公开号:US20130072648A1
公开(公告)日:2013-03-21
A solid catalyst for olefin polymerization and a process for producing an olefin polymer are provided. The polymer has a small content of a component which is dissolved out into a low temperature organic solvent, such as a low-molecular weight component and an amorphous component. The solid catalyst is obtained by bringing a solid catalyst component for olefin polymerization containing a titanium atom, a magnesium atom, a halogen atom, and an aliphatic carboxylate; an organoaluminum compound; and a compound represented by formula (I) into contact with each other:
wherein R
1
is a hydrocarbyl group having 1 to 10 carbon atoms, R
2
is a hydrogen atom, a halogen atom or a hydrocarbyl group having 1 to 16 carbon atoms, and the R
1
the R
2
groups are independently the same or different, and the respective R
1
groups and R
2
groups may be joined with each other to form a ring.
[EN] PREPARATION OF MACROCYCLIC KETONES UTILISING ADDITION OF KETONES TO ALKENES<br/>[FR] PREPARATION DE CETONES MACROCYCLIQUES PAR ADDITION DES CETONES A DES ALCENES
申请人:QUEST INT
公开号:WO2000001648A2
公开(公告)日:2000-01-13
The invention provides a process for the preparation of macrocyclic ketones by a reaction sequence wherein one step is the radical addition of ketone to alkene of the form (1), where R3 = H or lower alkyl, R4 = H or lower alkyl, m = 4 to 8, or form (2), where R1 = alkyl, R2 = H or alkyl, n = 4 to 8. The process can be used to produce macrocyclic ketone mixtures, particularly those containing muscone which are useful in producing fragranced products.