when a nonionic surfactant having an acetylene [1], an oxyethylene group and an oxypropylene The lower alkyl group shown by R11, R12 and
(O)n R11 R12 groups, an optionally substituted oxygen atoms, sulfur atoms and/or NR11 groups oxo and/or terminal acetylene groups are
oxygen, sulphur, nitrogen, silicon or carbon atom R12 and R13 may be substituted with organic for example acetylene, butadiene, 1,2-propad
q R12 or C1-6 alkyl wherein the R12 or C1- Y is oxygen; X2 is oxygen; X3 is hydrogen;acetylene as, e.g., compound 1-Scheme 2,
acetylene. The extened Hiickels calculations showaaI 4, O1-i0T,H0 N/RYO~xxxxh2 r12•Sn (100) Reactivities of Allenes in Comparison with
R12 is lower alkyl, and R13 is divalent alkyl(100%) and 1.15 g (9.4 mmol) of 4-(2-tetrahydropyranoxy)]-4-phenyl]acetylene (
201432-(b) vinylacetylene (C4H4), (c) methyl radical C5H5 radical [57] was used for R7 and R12.oxygen- ates such as alcohols, esters, ethers,
oxygen atoms, nitrogen atoms, sulfur atoms, and(e) R9 -R12 and R14 -R18, are each olefin ligands, acetylene ligands, and phosphine
2010719-(R12)3, ##STR2## wherein R is lower alkyl the --OH moiety of an alcoholic acetylene of (eluent: ethyl acetate/hexane:40/60 to 100%
100 mg of the active ingredient per kg body Acetylenes and (E)-Tri-substituted Olefins of R12 is lower alkyl, and R13 is divalent alkyl
5278318 Process of synthesizing acetylenes R12 is lower alkyl, and R13 is divalent alkyl-5-thiazolecarb oxylate and 2-(5,6,7,8-
R12 and R13 are independently selected and are 100 °C and about 500 °C to form the The acetylene groups remain inactive during
an R12SiO unit and an R1aHbSiO(4-a-b)/2100 parts by mass totaling the (A) and (B) acetylene alcohols and silane-modified product and
(2) 1 r12 c(1) d(2) dt1 dt2 º (a c | b d), (16) the (15) leads to the following ordering of the acetylene excited elec- tronic
(I) wherein T is NR1, oxygen, or sulfur, (CH2)qNR11R12, substituted or unsubstituted arylacetylene compound selected from the group
R12 are each methyl and n is 2 can be dimethylacetylenedicarboxylate(DMAD) to obtain the ( P -/-butyldimethylsilyloxyethyl methylamino)
100 Å/s for 1000 Å from the surface of ##STR33## wherein R11 and R12 are hydrogen acetylene alcohol derivatives for improving shelf
EP0176034 April, 1986 Diaryl acetylenes, their R12, R13 and R14 are hydrogen or methyl; R10 loweralkanoyloxy containing from 2 to 6 carbon
Society of Automotive Engineers (SAE), Paper Noacetylene compounds is by reacting the trimeric where R12 is cyclopentadiene or pentamethyl
Symmetrical diaryl-acetylenes can be prepared by reacting an aryl halide with acetylene in the presence of a palladium catalyst and a base. If the
(O)p --R12, in which R6, R8, R10, R12 oxygen atom and cannot simultaneously be a radicalacetylene derivative by means of a non-
methyl vinyl ketone, acetylene and their homologs(R12)COR12; sulfonyl radicals such as -SO2R12;(O)OCH3 and the like; oxycarbonyl radicals
R12 is lower alkyl, and R13 is divalent alkyl5278318 Process of synthesizing acetylenes 100 and 1,000 nanomolar (nmol) concentration
R12 represents an alkyl group having 1 to 8 100 by the multiplex drive of the TN-type )ethyl}-4-butyldiphenyl- 10% acetylene
(R12) and iAzospirillum brasilense/i, Sp7 (ATCC 29729)) and to observeThe observations involved Nsub2 /subfixation activities by acetylene reduction
R12 which is any group which replaces a hydroxyacetylene containing compounds with a Lindlar then 100 ml of 40% acetone in methylene
Abstract Canted chalcogens: Relatively stable selenirenium salts (R12C2SeR)+X- (R1=tert- alkyl) are prepared by reaction of RSe+X- with acetylenes;
A liquid crystal mixture having two or more liquid crystalline components comprises at least one aromatic acetylene compound. A liquid crystal mixture (I)
is —CN, not all one of R1 to R12 is —Hacetylene in the presence of a palladium/copper 100 parts by weight of the polymerizable liquid