O-Hydroxyethylation of 1,1-dihydroperfluorinated alcohols
摘要:
A convenient transformation of 1,1-dihydroperfluorinated alcohols into O-hydroxyethyl derivatives (RFCH2OCH2CH2OH) is described in which ethylene carbonate is utilized as the alkylating agent. Tetraalkylammonium iodides and trialkylamines are effective catalysts.
OPTICAL COMPENSATORY FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:Yoshizawa Masataka
公开号:US20090273740A1
公开(公告)日:2009-11-05
An optical compensatory film comprising an optically anisotropic layer composed of a liquid crystal composition including a liquid crystal compound, wherein the liquid crystal composition contains a copolymer including a repeating unit derived from a monomer of formula [1] and a repeating unit derived from a monomer of formula [2]:
wherein R
0
represents a hydrogen atom, a halogen atom or an alkyl group, L represents a divalent linking group, and n represents an integer of 1-18;
wherein R
11
represents a hydrogen atom, a halogen atom or an alkyl group, L
11
represents a divalent linking group, and R
13
, R
14
and R
15
represents a hydrocarbon group or an aromatic heterocyclic group.
US8153246B2
申请人:——
公开号:US8153246B2
公开(公告)日:2012-04-10
O-Hydroxyethylation of 1,1-dihydroperfluorinated alcohols
A convenient transformation of 1,1-dihydroperfluorinated alcohols into O-hydroxyethyl derivatives (RFCH2OCH2CH2OH) is described in which ethylene carbonate is utilized as the alkylating agent. Tetraalkylammonium iodides and trialkylamines are effective catalysts.