A new samarium diiodide-mediated coupling reaction between N-acyl lactams and ketones or aldehydes
作者:Sorin Farcas、Jean-Louis Namy
DOI:10.1016/s0040-4039(00)01137-0
日期:2000.9
A new SmI2-mediated coupling reaction between N-acyl lactams and ketones or aldehydes is reported. The ring opening of these imides with samarium diiodide gives acyl samarium species, which are trapped by ketones or aldehydes to yield amido α-ketols. With an excess of SmI2, in the presence of ethanol, the end products are amidoketones.
RESIN, RESIST COMPOSITION AND METHOD FOR PRODUCING RESIST PATTERN
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:US20160077433A1
公开(公告)日:2016-03-17
A resist composition includes (A1) a resin which includes a structural unit represented by formula (a4), a structural unit represented by formula (II), the resin has no acid-labile group, (A2) a resin having an acid-labile group, and an acid generator:
wherein R
3
represents a hydrogen atom or a methyl group, and R
4
represents a C
1
to C
24
saturated hydrocarbon group having a fluorine atom where a methylene group may be replaced by an oxygen atom or a carbonyl group; R
7
represents a hydrogen atom, a halogen atom or a C
1
to C
6
alkyl group that may have a halogen atom; ring X
1
represents a C
2
to C
36
heterocyclic group containing a nitrogen atom and a carbonyl group, a hydrogen atom contained in the heterocyclic group may be replaced by a halogen atom, a hydroxy group, a C
1
to C
24
hydrocarbon, a C
1
to C
12
alkoxyl group, a C
2
to C
4
acyl group, or a C
2
to C
4
acyloxy group, and a methylene group contained in the heterocyclic group may be replaced by an oxygen atom or a carbonyl group.