Abstract: The invention provides novel acid generators which are unproblematic in combustibility and accumulation inside the human body and can generate acids having high acidities and high boiling points and exhibiting properly short diffusion lengths in resist coating films and which permit the formation of resist patterns excellent smoothness with little dependence on the denseness of a mask pattern; sulfonic acids generated from the acid generators; sulfonyl halides useful as raw material in the synthesis of the acid generators; and radiation-sensitive resin compositions containing the acid generators. The acid generators have structures represented by the general formula (I), wherein R1 is a monovalent substituent such as alkoxycarbonyl, alkylsulfonyl, or alkoxysulfonyl; R2 to R4 are each hydrogen or alkyl; k is an integer of 0 or above; and n is an integer of 0 to 5.
Abstract: The present invention relates to halo sulfonyl aryl boronates of the general formula (I): wherein Arylene designates a carbocyclic or heterocyclic, aromatic ring system comprising 1-3 rings; R1, R2 and R3 are, independently, hydrogen, C1-6alkyl, C1-6alkoxy, halogen, nitro, cyano or phenyl; X is fluoro, chloro or bromo; and Y is a boroxine moiety attached via a bond from Arylene to one of the boron atoms of a boroxine ring which ring has a group of the formula -Arylene(R1)(R2)(R3)SO2X, wherein Arylene, R1, R2, R3 and X are as defined above, at each of the other two boron atoms of the boroxine ring, or Y is a boronic acid group or a boronic ester group. The invention also relates to the preparation of the compounds of formula (I) and to their use in organic synthesis.
Type:
Grant
Filed:
October 30, 2003
Date of Patent:
March 29, 2005
Assignee:
Novo Nordisk A/S
Inventors:
Per Vedso, Preben Houlberg Olesen, Thomas Hoeg-Jensen
Abstract: The invention relates to the preparation of compounds (I)
in which A═H or acyl and R1, R2, R3, R, n, X, Y and Z are as defined in claim 1 by halogenation and rearrangement of compounds (II) (optionally salt) to give compounds (III)
a) ammonolysis of (III) to (IV), reduction of the nitro group and reaction with carbamate (salts) (VI) of the formula Ar—OCO—N(M)-Het, where Ar=phenyl, M═H or cation and Het=heterocycle from formula (I), to give compounds (I) (A═H), or
b) ammonolysis of (III) to (IV), reaction with carbamate (salt) (VI) and reduction of resulting compounds (VII) at the NO2 group to give compounds (I) (A═H), or
c) reaction of (III) with cyanates and amines (VII) of the formula HNR3-Het and reduction of the resulting compound (VII) at the NO2 group to give compounds (I) (A═H) and optional acylation if A is to be other than H.
Type:
Grant
Filed:
November 5, 2002
Date of Patent:
September 14, 2004
Assignee:
Hoechst Schering AgrEvo GmbH
Inventors:
Gerhard Schnabel, Jan Vermehren, Lothar Willms
Abstract: A preparation process of acyl halide or sulfonyl halide which comprises reacting corresponding carboxylic acid or sulfonic acid with a haloiminium salt represented by the general formula (1): ##STR1## wherein R.sup.1 and R.sup.2 are same or different lower alkyl groups, X is a halogen atom, and n is an integer of 2 or 3.
Abstract: The present invention provides a compound of formula (1) ##STR1## in which: R.sub.4 represents a hydrogen atom, a halogen atom or a nitro group;R.sub.6 represents a hydrogen atom or a straight or branched (C.sub.1 -C.sub.6)alkyl group;R.sub.7 represents a chlorine atom or a hydroxyl group; andZ represents: a phenyl group optionally substituted with one or more halogen atoms, straight or branched (C.sub.1 -C.sub.4)alkyl groups, straight or branched (C.sub.1 -C.sub.4)alkoxy groups, or trifluoromethyl, formyl, --CH.sub.2 OR, --CH.sub.2 OCOR, --CH.sub.2 CONRR', --CH.sub.2 ONCOR, --COOR, nitro, --NHR, --NRR' or --NHCOR groups, wherein R and R' are each, independently, a hydrogen atom or a (C.sub.1 -C.sub.7)alkyl group; a heterocyclic group optionally substituted as defined above for phenyl; or a cyclo(C.sub.5 -C.sub.8)alkyl group; additionally, when R.sub.
Type:
Grant
Filed:
February 10, 1997
Date of Patent:
April 14, 1998
Assignee:
Synthelabo
Inventors:
Jean Michel Altenburger, Gilbert Lassalle