摘要:
There is provided a fluorine-containing copolymer having an aliphatic monocyclic structure in the polymer trunk chain which has a number average molecular weight of from 500 to 1,000,000 and is represented by the formula (Ma):
- (M1) - (M2a) - (N) - (Ma)
in which the structural unit M1 is a structural unit derived from an ethylenic monomer having 2 or 3 carbon atoms and at least one fluorine atom, the structural unit M2a is at least one structural unit which introduces an aliphatic monocyclic structure in the polymer trunk chain and is represented by the formula (a): wherein R 1 is at least one hydrocarbon group selected from the group consisting of a divalent hydrocarbon group having 1 to 8 carbon atoms and constituting a ring which may be further substituted with a hydrocarbon group or a fluorine-containing alkyl group and a divalent hydrocarbon group having ether bond which has the sum of carbon atoms and oxygen atoms of 2 to 8, constitutes a ring and may be further substituted with a hydrocarbon group or a fluorine-containing alkyl group; R 2 is an alkylene group which has 1 to 3 carbon atoms and constitutes a ring; R 3 and R 4 are the same or different and each is a divalent alkylene group which has 1 or 2 carbon atoms and constitutes a ring; n1, n2 and n3 are the same or different and each is 0 or 1, the structural unit N is a structural unit derived from a monomer copolymerizable with the monomers to introduce the structural units M1 and M2a, and the structural units M1, M2a and N are contained in amounts of from 1 to 99 % by mole, from 1 to 99 % by mole and from 0 to 98 % by mole, respectively. The fluorine-containing polymer possesses excellent dry etching resistance and transparency in a vacuum ultraviolet region.
摘要:
An alkylative cycloaddition method is provided that is particularly useful for the synthesis of many of the Vitamin D analogues with differing side chains. Thus, a preferred synthesis is of Vitamin D analogues having a side chain R1 where a substantially geometrically pure first precursor having structure (I), and a second precursor are provided, the second precursor being a 1,7 enyne. These precursors are reacted in the presence of a palladium catalyst to form compounds having structure (II), where R2 is hydrogen, hydroxyl, lower alkoxy, fluorine, or a protecting group, and R3 is hydrogen, hydroxyl, lower alkoxy, fluorine, or a protecting group.
摘要:
Die Erfindung betrifft ein Verfahren zur Herstellung von α- und β-Iron, also den Verbindungen der Formel I, sowie neue Zwischenprodukte dieser Synthese.
摘要:
A process for producing a compound (I) which comprises the step of reacting a compound (II) with a base in an aprotic solvent as shown by the scheme: (II) (I) wherein R1 and R2 each independently represents lower alkyl.
摘要:
Novel norbornene derivatives bearing fluorinated ketone or fluorinated alcohol moieties attached directly to norbornene skeleton, which are useful as material of chemically amplified photoresists for F 2 laser lithography having excellent transparency and improved dry etching resistance; fluorine −containing polymers produced by using the derivatives as comonomer; and chemically amplified photoresist compositions each comprising a fluorine−containing polymer described above, a photoacid generator, and a solvent.
摘要翻译:具有含氟酮结构的含氟降冰片烯衍生物的制造包括使降冰片烯衍生物与氟烷基化剂反应。 具有式(II)的含氟酮结构的含氟降冰片烯衍生物的制造包括将式(I)的降冰片烯衍生物和引入Rf 1>的氟烷基化剂与(I)中的X反应。 [图像] [图像] X: - (R 1>)n2-X 1>; X 1> -COOR 2>或-C(= O)X 2>; R 2> 1-5C烷基; X 2>卤素原子; R 1>二价有机基团; n2:0或1; Y:H,F,Cl,1-10C烷基或任选含有醚键的氟代烷基; n:0-5; m:1-5; m + n1:6; 任选含有醚键的Rf 1> 1-10C氟代烷基; 和Z: - (R 1)n 2 -C(= O)R f 1。 还包括以下独立权利要求:(1)制造具有氟代醇结构的含氟降冰片烯衍生物; (2)具有式(V)的含氟酮结构的降冰片烯衍生物; (3)具有氟代醇结构的降冰片烯衍生物; (4)式 - (M1) - (M2) - (N) - 的数均分子量为500-1000000的含氟聚合物; (5)包含聚合物,光酸产生剂和溶剂的化学放大光致抗蚀剂组合物。 [图像] [图像] [图像] Z 3> -C(= O)Rf 3>; 任选含有醚键或式(VI)或(VII)的Rf 3> 1-10C氟代烷基; M1:衍生自降冰片烯衍生物的单元; M2:衍生自2-3C烯属单体的单元; N:可共聚单体。
摘要:
A process for the preparation of Compound (I) comprising reacting Compound (II) with a base in an aprotic solvent, which is represented by the following scheme: wherein R 1 and R 2 are each independently lower alkyl.
摘要:
Vitamin D derivatives having general formula (1) which are hydroxylated at the 24-position and considered as one of metabolites of physiologically active vitamin D derivatives substituted at the 2β-position wherein R1, R2, R3 and R4 are the same or different and each represents hydrogen or a protective group; X and Y represent each H or OR5, provided that Y is OR5 when X is H, and Y is H when X is OR5 (wherein R5 represents hydrogen or a protective group, or R1 and R5 may together form a vicinal-diol protective group); synthesis intermediates useful in synthesizing these vitamin D derivatives; and medicinal compositions containing these vitamin D derivatives.
摘要:
Compounds represented by the following general formula (1a) or (1b).
A complex comprising a center metal of rhodium and a compound represented by the following general formula (1a) or (1b) as a ligand. A catalyst for optically active beta-substituted carbonyl compound synthesis and catalyst for asymmetric 1, 2 addition reaction being composed of the complex. A method of production of an optically active beta-aryl compound from an alpha, beta- unsaturated compound and an aryl-boronic acid derivative and method of production of an optically active aryl alcohol compound from an aldehyde compound and aryl boronic acid derivatives using the catalyst. A complex comprising a center metal of palladium and a compound represented by the following general formula (1a) or (1b) as a ligand. A catalyst for asymmetric allylic substitution reaction being composed of the complex. A method of production of an optically active dialkyl (1,3-disubstituted propeny)malonate compound from a 1,3- disubstituted ally acetate compound and a dialkyl malonate and method of production of an optically active allylamine compound from a 1,3-disubstituted ally acetate compound and an amine compound. The compounds have not only the versatility of being usable in the synthesis of wide-ranging optically active aryl compounds but also the selectivity and reactivity permitting synthesis with high yield within a short period of time under industrially advantageous mild conditions.
摘要:
There are provided a novel norbornene derivative which is a material for a chemically amplifying type photoresist for F 2 laser, possesses excellent transparency and improved dry etching resistivity and has a fluorine-containing ketone unit or fluorine-containing tertiary alcohol unit directly bonded to the norbornene backbone; a fluorine-containing polymer obtained by using the norbornene derivative as a copolymerizable monomer; and a chemically amplifying type photoresist composition comprising the fluorine-containing polymer, a photoacid generator and a solvent.