Patent classifications
C07C249/04
COMPOSITION, PRODUCTION METHOD FOR COMPOSITION, AND PRODUCTION METHOD FOR UNSATURATED COMPOUND
The invention is related to a composition excellent in stability during storage and excellent stability during utilization, and related to a method of producing the composition. The composition comprises a compound (A) represented by general formula (1) and a compound (B). The compound (B) is an oligomer in which two or more molecules of the compound (A) are bonded to each other by ethylenically unsaturated groups of each compound (A). The composition contains 0.00002 to 0.2 parts by mass of the compound (B) with respect to 100 parts by mass of the compound (A),
(R.sub.1—COO).sub.n—R.sub.2—(NCO).sub.m (1)
wherein in general formula (1), R.sub.1 is an ethylenically unsaturated group having 2 to 7 carbon atoms; R.sub.2 is a (m+n)-valent hydrocarbon group having 1 to 7 carbon atoms and optionally contain an ether group; and n and in each represent an integer of one or two.
COMPOSITION, PRODUCTION METHOD FOR COMPOSITION, AND PRODUCTION METHOD FOR UNSATURATED COMPOUND
The invention is related to a composition excellent in stability during storage and excellent stability during utilization, and related to a method of producing the composition. The composition comprises a compound (A) represented by general formula (1) and a compound (B). The compound (B) is an oligomer in which two or more molecules of the compound (A) are bonded to each other by ethylenically unsaturated groups of each compound (A). The composition contains 0.00002 to 0.2 parts by mass of the compound (B) with respect to 100 parts by mass of the compound (A),
(R.sub.1—COO).sub.n—R.sub.2—(NCO).sub.m (1)
wherein in general formula (1), R.sub.1 is an ethylenically unsaturated group having 2 to 7 carbon atoms; R.sub.2 is a (m+n)-valent hydrocarbon group having 1 to 7 carbon atoms and optionally contain an ether group; and n and in each represent an integer of one or two.
METHOD AND MIXTURE TO FORM FUNCTIONALIZED CYCLIC COMPOUNDS
A method for producing a homocyclic or heterocyclic compound includes reacting a compound of formula (I) with a compound of formula (II) in presence of a base:
##STR00001##
In formula (I), B is an unsaturated moiety selected from substituted or unsubstituted vinylene, ethynylene, aryleneethynylene, substituted or unsubstituted arylenevinylene, and a combination thereof, the vinylene or arylenevinylene has n (=0, 1 or 2) substituent(s) R.sup.2, G is an electron-withdrawing group, R.sup.1 is hydrogen or a substituent, and two of R.sup.1, R.sup.2 and G may joint together to form a ring. In formula (II), R.sup.3 and R.sup.4 are independently hydrogen or a substituent, R.sup.5 is an electron-withdrawing group, and two of R.sup.3, R.sup.4 and R.sup.5 may joint together to form a ring. The conjugate acid of the base has a pK.sub.a in the range of 1 to 15.
METHOD AND MIXTURE TO FORM FUNCTIONALIZED CYCLIC COMPOUNDS
A method for producing a homocyclic or heterocyclic compound includes reacting a compound of formula (I) with a compound of formula (II) in presence of a base:
##STR00001##
In formula (I), B is an unsaturated moiety selected from substituted or unsubstituted vinylene, ethynylene, aryleneethynylene, substituted or unsubstituted arylenevinylene, and a combination thereof, the vinylene or arylenevinylene has n (=0, 1 or 2) substituent(s) R.sup.2, G is an electron-withdrawing group, R.sup.1 is hydrogen or a substituent, and two of R.sup.1, R.sup.2 and G may joint together to form a ring. In formula (II), R.sup.3 and R.sup.4 are independently hydrogen or a substituent, R.sup.5 is an electron-withdrawing group, and two of R.sup.3, R.sup.4 and R.sup.5 may joint together to form a ring. The conjugate acid of the base has a pK.sub.a in the range of 1 to 15.
Directed β-C(sp.SUP.3.)#H iodination and arylation of ketones
This invention discloses the first example of palladium(II)-catalyzed -C(sp.sup.3)-H iodination or arylation of a wide range of ketones by using a commercially available aminooxyacetic acid auxiliary. This L, X-type directing group overcomes the limitation of the transient directing group approach for -C(sp.sup.3)-H functionalization of ketones. Practical advantages of this method include simple installation of the auxiliary without chromatography, exceptional tolerance of a-functional groups, double bonds and triple bonds and rapid access to diverse sterically hindered quaternary centers.
Directed β-C(sp.SUP.3.)#H iodination and arylation of ketones
This invention discloses the first example of palladium(II)-catalyzed -C(sp.sup.3)-H iodination or arylation of a wide range of ketones by using a commercially available aminooxyacetic acid auxiliary. This L, X-type directing group overcomes the limitation of the transient directing group approach for -C(sp.sup.3)-H functionalization of ketones. Practical advantages of this method include simple installation of the auxiliary without chromatography, exceptional tolerance of a-functional groups, double bonds and triple bonds and rapid access to diverse sterically hindered quaternary centers.
METHOD AND MIXTURE TO FORM FUNCTIONALIZED CYCLIC COMPOUNDS
A method for producing a homocyclic or heterocyclic compound includes reacting a compound of formula (I) with a compound of formula (II) in presence of a base:
##STR00001##
In formula (I), B is an unsaturated moiety selected from substituted or unsubstituted vinylene, ethynylene, aryleneethynylene, substituted or unsubstituted arylenevinylene, and a combination thereof, the vinylene or arylenevinylene has n (=0, 1 or 2) substituent(s) R.sup.2, G is an electron-withdrawing group, R.sup.1 is hydrogen or a substituent, and two of R.sup.1, R.sup.2 and G may joint together to form a ring. In formula (II), R.sup.3 and R.sup.4 are independently hydrogen or a substituent, R.sup.5 is an electron-withdrawing group, and two of R.sup.3, R.sup.4 and R.sup.5 may joint together to form a ring. The conjugate acid of the base has a pK.sub.a in the range of 1 to 15.
METHOD AND MIXTURE TO FORM FUNCTIONALIZED CYCLIC COMPOUNDS
A method for producing a homocyclic or heterocyclic compound includes reacting a compound of formula (I) with a compound of formula (II) in presence of a base:
##STR00001##
In formula (I), B is an unsaturated moiety selected from substituted or unsubstituted vinylene, ethynylene, aryleneethynylene, substituted or unsubstituted arylenevinylene, and a combination thereof, the vinylene or arylenevinylene has n (=0, 1 or 2) substituent(s) R.sup.2, G is an electron-withdrawing group, R.sup.1 is hydrogen or a substituent, and two of R.sup.1, R.sup.2 and G may joint together to form a ring. In formula (II), R.sup.3 and R.sup.4 are independently hydrogen or a substituent, R.sup.5 is an electron-withdrawing group, and two of R.sup.3, R.sup.4 and R.sup.5 may joint together to form a ring. The conjugate acid of the base has a pK.sub.a in the range of 1 to 15.
Directed Beta-C(sp3)–H Iodination and Arylation of Ketones
This invention discloses the first example of palladium(II)-catalyzed -C(sp.sup.3)-H iodination or arylation of a wide range of ketones by using a commercially available aminooxyacetic acid auxiliary. This L, X-type directing group overcomes the limitation of the transient directing group approach for -C(sp.sup.3)-H functionalization of ketones. Practical advantages of this method include simple installation of the auxiliary without chromatography, exceptional tolerance of a-functional groups, double bonds and triple bonds and rapid access to diverse sterically hindered quaternary centers.
Directed Beta-C(sp3)–H Iodination and Arylation of Ketones
This invention discloses the first example of palladium(II)-catalyzed -C(sp.sup.3)-H iodination or arylation of a wide range of ketones by using a commercially available aminooxyacetic acid auxiliary. This L, X-type directing group overcomes the limitation of the transient directing group approach for -C(sp.sup.3)-H functionalization of ketones. Practical advantages of this method include simple installation of the auxiliary without chromatography, exceptional tolerance of a-functional groups, double bonds and triple bonds and rapid access to diverse sterically hindered quaternary centers.