摘要:
Di- or triphenyl monoterpene hydrocarbon derivatives of formula (1) are novel. ##STR1## X is a di- or trivalent monoterpene hydrocarbon group, R.sup.1 to R.sup.3 are hydrogen or an alkyl, alkoxy, alkoxyalkyl, alkenyl or aryl group, R.sup.4 is hydrogen or an acid labile group, at least one R.sup.4 being an acid labile group, letter n is an integer of 1-5, j, k and m are integers of 0-4, n+j+k+m=5, and p is 2 or 3. When used as a dissolution rate regulator, the compound of formula (1) exerts remarkably enhanced dissolution inhibitory effect and minimized light absorption in the deep-UV region. A chemically amplified positive resist composition having the compound of formula (1) blended therein is highly sensitive to actinic radiation such as deep-UV radiation, electron beam and X-ray, especially KrF excimer laser light, and has improved sensitivity, resolution and plasma etching resistance.
摘要翻译:式(1)的二 - 或三苯基单萜烃衍生物是新颖的。 X是二价或三价单萜烃基,R 1至R 3是氢或烷基,烷氧基,烷氧基烷基,烯基或芳基,R 4是氢或酸不稳定基团,至少一个R 4是酸不稳定基团,字母n 是1-5的整数,j,k和m是0-4,n + j + k + m = 5的整数,p是2或3.当用作溶出速率调节剂时,式 1)在深紫外区域发挥显着增强的溶解抑制作用和最小化的光吸收。 具有其中混合的式(1)化合物的化学放大正性抗蚀剂组合物对光化辐射如深UV辐射,电子束和X射线,特别是KrF准分子激光具有高度敏感性,并且具有改善的灵敏度,分辨率和等离子体 耐腐蚀性。
摘要:
A composition which is capable of releasing acrolein and is easy to handle contains (i) an acetal of acrolein with a C.sub.1-6 alcohol with 1 to 4 hydroxyl groups and (ii) an acid soluble therein and chemically compatible with a pK.sub.s value of less than 4 and (iii) is anhydrous. A preferred composition contains 2-vinyl-1,3-dioxolane as acetal, anhydrous oxalic acid, fumaric acid or maleic acid or a mixture of mono- and di(C.sub.1 - to C.sub.3 -)alkyl phosphate as acid and, in addition, a non-ionic surfactant. The acrolein is released at the site of use upon contact with for example water for the purpose of combatting microbial, vegetable and animal pests.
摘要:
The compounds of formula ##STR1## wherein symbol X represents a --CHO group or an acetal group of formula ##STR2## symbols R', taken separately, represent each a C.sub.1 to C.sub.4, linear or branched, saturated or unsaturated, hydrocarbon radical or, taken together, represent a C.sub.1 to C.sub.4 alkylene radical, which may be substituted, and symbol R represents a hydrogen atom or a methyl radical, are useful as perfuming ingredients for the preparation of perfuming compositions and perfumed articles, to which they impart floral type notes.
摘要:
Novel mixtures of bicyclic ethers of the formulas ##STR1## wherein R represents an alkyl group of from one to four carbon atoms, said mixture having at least a 1.1:1 ratio of Ia to Ib, a process for their manufacture and their use as odoranis and novel intermediates for their preparation are described.
摘要:
The present invention is an improved method to prepare 2,7-dimethyl-2,4,6-octatrienedial and related derivative compounds. This method of making 2,7-dimethyl-2,4,6-octatrienedial and derivatives thereof includes reacting 2-butenyl-bisphosphonic acid tetraalkyl ester and at least two equivalents of protected pyruvic aldehyde derivative in a nonpolar organic solvent in the presence of an alkali metal hydroxide. Compounds prepared by this invention are useful intermediates in the preparation of carotenoids.
摘要:
Derivatives of carbonyl-group containing behavior modifying compounds, in which said carbonyl group has been converted to a photolabile group which regenerates the carbonyl group on exposure to radiation, are of value in various methods for the control of animal, and in particular insect, species.
摘要:
A compound of formula (I): ##STR1## or a pharmaceutically acceptable salt, ester or amide thereof, in which: W is an optionally substituted phenyl group of the formula ##STR2## wherein R.sup.1 is hydrogen or fluorine, R.sup.2 is hydrogen, C.sub.1-6 alkyl, halogen or trifluoromethyl; or W is a phenoxymethyl or benzofuran-2-yl group;R.sup.3 is C.sub.1-12 alkyl or phenyl C.sub.1-6 alkyl;A is hydrogen or methyl,X is carboxy, --Z--CO.sub.2 H, --Z--OH, T--Z--CO.sub.2 H,--Z--NR.sup.4 R.sup.5, --T--Y--OM, --T--Y--NR.sup.4 R.sup.5, or --T--R.sup.6, in the para- or meta-position with respect to the --(CH.sub.2).sub.n group, whereinR.sup.4 and R.sup.5 are each hydrogen or C.sub.1-6 alkyl,R.sup.6 is C.sub.1-6 alkyl,T is 0, S, --NH or --N--R.sup.7, in which R.sup.7 is C.sub.1-6 alkylZ is C.sub.1-10 straight or branched alkylene optionally containing a carbon-carbon double bond;Y is C.sub.2-10 straight or branched alkylene, provided that the hetero atoms in --T--Y--OM and --T--Y--NR.sup.4 R.sup.5 are separated by at least two carbon atoms, M is hydrogen, C.sub.1-6 alkyl or phenyl, and n is 1 or 2, is useful for obesity or hyperglycaemia.
摘要:
A multi-step process for the preparation of alpha,beta-unsaturated aliphatic aldehydes such as citral by first reacting an allylic alcohol with a butadienyl ether, or a corresponding acrolein derivative or its acetal, including novel intermediates in this process.
摘要:
ACID-CATALYZED REACTIONS SUCH AS ALDOL CONDENSATIONS, ACETAL AND KETAL PREPARATIONS, ESTERIFICATIONS, VARIOUS HYDROLYSIS REACTIONS, THE REACTION OF A KETONE OR ALDEHYDE WITH A PHENOL TO MAKE AN ALKYLIDENE-BISPHENOL, AND THE POLYMERIZATION OF EPOXIDES AND THE ALKYLENE IMINES ARE ADVANTAGEOUSLY CARRIED OUT WHEN THE ACID CATALYST IS GRAPHITE OR AMORPHOUS CARBON TREATED WITH FUMING NITRIC OR SULFURIC ACIDS OR A MIXTURE OF THE CONCENTRATED ACIDS. THE ACID CATALYST IS REUSABLE FOR SUCCESSIVE REACTIONS WITHOUT RAPID DIMINUTION OF ACID STRENGTH.