Ring opening of epoxides with NaHSO4: isolation of β-hydroxy sulfate esters and an effective synthesis for trans-diols
摘要:
Sodium hydrogen sulfate (NaHSO4) was observed to be highly effective as a reagent or catalyst in the ring-opening reactions of epoxides under mild conditions. Reaction of epoxides with NaHSO4 gave isolable P-hydroxy sulfate esters and vicinal diols. Experimenting with different epoxides, the study investigated the scope of the ring-opening reaction. (C) 2008 Elsevier Ltd. All rights reserved.
ACTINIC-RAY- OR RADIATION-SENSITIVE RESIN COMPOSITION, ACTINIC-RAY- OR RADIATION-SENSITIVE FILM, MASK BLANK AND METHOD OF FORMING PATTERN
申请人:FUJIFILM Corporation
公开号:US20140242502A1
公开(公告)日:2014-08-28
According to one embodiment, an actinic-ray- or radiation-sensitive resin composition includes a compound (A) that contains a structure (P) containing at least one phenolic hydroxyl group and a structure (Q) containing at least one phenolic hydroxyl group whose hydrogen atom is replaced by a group (S) with a cyclic structure containing an acid crosslinking group, characterized in that the group (S) with a cyclic structure containing an acid crosslinking group is a group with a polycyclic structure or a group with a cyclic structure containing a hydroxymethyl group and/or an alkoxymethyl group.
SEMICONDUCTOR ELEMENT AND INSULATING LAYER-FORMING COMPOSITION
申请人:FUJIFILM Corporation
公开号:US20170005266A1
公开(公告)日:2017-01-05
Provided is a semiconductor element having a semiconductor layer and an insulating layer adjacent to the semiconductor layer, in which the insulating layer is formed of a crosslinked product of a polymer compound having a repeating unit (IA) represented by the following General Formula (IA) and a repeating unit (IB) represented by the following General Formula (IB).
In General Formula (IA), R
1a
represents a hydrogen atom, a halogen atom, or an alkyl group. L
1a
and L
2a
each independently represent a single bond or a linking group. X represents a crosslinkable group. m2a represents an integer of 1 to 5, and in a case where m2a is 2 or more, m2a number of X's may be the same or different from each other, m1a represents an integer of 1 to 5, and in a case where m1a is 2 or more, m1a number of (-L
2a
-(X)
m2a
)'s may be the same or different from each other. In General Formula (IB), R
1b
represents a hydrogen atom, a halogen atom, or an alkyl group. L
1b
represents a single bond or a linking group, and Ar
1b
represents an aromatic ring, m1b represents an integer of 1 to 5.
SEMICONDUCTOR DEVICE AND INSULATING LAYER-FORMING COMPOSITION
申请人:FUJIFILM Corporation
公开号:US20170054076A1
公开(公告)日:2017-02-23
Provided is a semiconductor device which includes a semiconductor layer and an insulating layer adjacent to the semiconductor layer, in which the insulating layer is formed of a crosslinked product of a polymer compound that has a repeating unit (IA) represented by the following Formula (IA) and a repeating unit (IB) represented by the following Formula (IB); and an insulating layer-forming composition which is used for forming an insulating layer of a semiconductor device and contains a polymer compound that has the following repeating units (IA) and (IB).
In Formulae, R
1a
and R
1b
each independently represent a hydrogen atom, a halogen atom, or an alkyl group. L
1a
, L
2a
, and L
1b
each independently represent a single bond or a linking group. X represents a crosslinkable group and Y
B
represents a decomposable group or a hydrogen atom. m1a and m2a each independently represent an integer of 1 to 5. The symbol “*” represents a bonding position of the repeating units.