Abstract:
Synthetic methods for lactone-containing compounds such as the discodermolides are provided, as are compounds which mimic the chemical and/or biological activity thereof, and methods and intermediates useful in their preparation.
Abstract:
Synthetic methods for lactone-containing compounds such as the discodermolides are provided, as are compounds which mimic the chemical and/or biological activity thereof, and methods and intermediates useful in their preparation.
Abstract:
Synthetic methods for lactone-containing compounds such as the discodermolides are provided, as are compounds which mimic the chemical and/or biological activity thereof, and methods and intermediates useful in their preparation.
Abstract:
A compound of formula (I) where R is CH and R is a bond, or R and R together form an electron withdrawing group; R and R are independently selected from (CR R )n, or a group CR R , -(CR R CR R )- or -(CR R CR R )- where n is 0,1 or 2, R and R are independently selected from hydrogen or alkyl, and either one of R or R is hydrogen and the other is an electron withdrawing group, or R and R together form an electron withdrawing group, and R and R are independently selected from CH or CR where R is an electron withdrawing group; the dotted lines indicate the presence or absence of a bond, and X is a group CX X where the dotted line bond to which it is attached is absent and a group CX where the dotted line bond to which it is attached is present, Y is a group CY Y where the dotted line bond to which it is attached is absent and a group CY where the dotted line bond to which it is attached is present, and X , X , Y and Y are independently selected from hydrogen and fluorine; R is a bridging group of valency r and r is an integer of 2 or more, subject to the following provisos: (i) that at least one of (a) R and R or (b) R and R or (c) R and R includes an electron withdrawing group. These compounds are useful in the production of network polymers, for example for coatings or binders.
Abstract:
A compound of formula (I) where R is CH and R is a bond, or R and R together form an electron withdrawing group; R and R are independently selected from (CR R )n, or a group CR R , -(CR R CR R )- or -(CR R CR R )- where n is 0,1 or 2, R and R are independently selected from hydrogen or alkyl, and either one of R or R is hydrogen and the other is an electron withdrawing group, or R and R together form an electron withdrawing group, and R and R are independently selected from CH or CR where R is an electron withdrawing group; the dotted lines indicate the presence or absence of a bond, and X is a group CX X where the dotted line bond to which it is attached is absent and a group CX where the dotted line bond to which it is attached is present, Y is a group CY Y where the dotted line bond to which it is attached is absent and a group CY where the dotted line bond to which it is attached is present, and X , X , Y and Y are independently selected from hydrogen and fluorine; R is a bridging group of valency r and r is an integer of 2 or more, subject to the following provisos: (i) that at least one of (a) R and R or (b) R and R or (c) R and R includes an electron withdrawing group. These compounds are useful in the production of network polymers, for example for coatings or binders.
Abstract translation:式(I)化合物,其中R 1为CH且R 6为键,或者R 1和R 6一起形成吸电子基团; R 2和R 3独立地选自(CR 7 R 8)n或基团CR 9 R 10, - (CR 7 R 8 CR 9 R 10) - 或 - (CR 9 R 10 CR 7 R 8) - ,其中n是0,1或2,R 7和R 8独立地选自 氢或烷基,并且R 9或R 10中的任一个为氢且另一个为吸电子基团,或者R 9和R 10一起形成吸电子基团,并且R 4, 和R 5独立地选自CH或CR 11,其中R 11是吸电子基团; 虚线表示键的存在或不存在,并且X 1是基团CX 2 X 3,其中它所连接的虚线键不存在,并且基团CX 2其中虚线 存在与其连接的线键,Y 1是基团CY 2 Y 3,其中它所连接的虚线键不存在,而基团CY 2其中虚线键合到 其中所连接的X 2,X 3,Y 2和Y 3独立地选自氢和氟; (i)R 1和R 6中的至少一个或(b)中的至少一个是(a)R 1和R 2中的至少一个, )R 2和R 3或(c)R 4和R 5包括吸电子基团。 这些化合物可用于生产网状聚合物,例如用于涂料或粘合剂。
Abstract:
A compound of formula (I) where R is CH and R is a bond, or R and R together form an electron withdrawing group; R and R are independently selected from (CR R )n, or a group CR R , -(CR R CR R )- or -(CR R CR R )- where n is 0,1 or 2, R and R are independently selected from hydrogen or alkyl, and either one of R or R is hydrogen and the other is an electron withdrawing group, or R and R together form an electron withdrawing group, and R and R are independently selected from CH or CR where R is an electron withdrawing group; the dotted lines indicate the presence or absence of a bond, and X is a group CX X where the dotted line bond to which it is attached is absent and a group CX where the dotted line bond to which it is attached is present, Y is a group CY Y where the dotted line bond to which it is attached is absent and a group CY where the dotted line bond to which it is attached is present, and X , X , Y and Y are independently selected from hydrogen and fluorine; R is a bridging group of valency r and r is an integer of 2 or more, subject to the following provisos: (i) that at least one of (a) R and R or (b) R and R or (c) R and R includes an electron withdrawing group. These compounds are useful in the production of network polymers, for example for coatings or binders.