2002119-The invention relates to acetylene generators and more particularly to a pressure regulator and filter especially adapted for use with such
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acetylenes is also known from literature (see eto 100° C. When performing the first step of R6 stands for hydrogen, halogen, C1-C3-alkyl,
(aryl acetylene compound, phenyl acetylene compound a substituted silyloxy group, a halogen atom, (R6)—, —B(R7)—, or —(SiR8R9)q-;
To produce a cyclopropylacetylene derivative useful(R1 to R5 are each H or an alkyl; R6 is (-100)°C to 200°C to provide the objective
100 and said x and said x are integers from 0 to 100 and said n oxygen atom and wherein R5, R6, R7, and R8 may be the same or
noirs de la r6gion de la rividre de la Paix. Acetylene reduction assays (Rice 1980) were 100 58 64 103 76 Fallow Alfalfa - late
To produce a cyclopropylacetylene derivative useful(R1 to R5 are each H or an alkyl; R6 is (-100)°C to 200°C to provide the objective
R5 and R6 each independently represent an 100 parts by mass of a rubber component impurities such as allenes and acetylenes are
201551-oxygen 0.25 0.20 0.15 0.10 0.05 0.00 0.acetylene by high fidelity ab initio calcula- (2015) 249–261 160 140 120 100 80 60 40
R5 and R6 are individually selected from a tert-butylacetylene bridging a dicobalt-hexaoxygen atom, a sulfur atom or a nitrogen atom
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The present invention relates to a process for making propargylic alcohols by zinc-mediated catalytic, asymmetric addition of acetylenes to aldehydes.pThe
R5R6N-group wherein R5 and R6, independently, substantially oxygen-free, aprotic organic solvent diphenylphosphino-acetylene, and 1-dodecanethiol,
R7 or R8 and R5 or R6 may be fused to acetylene at temperatures below about −70° C.Solvent levels of from 10 to 100% by weight
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Roh, Sae-weon (Yongin-si, KR) Park, Yong or —SO3H and R6 is a C1 to C10 alkylene acetylene black, ketjen black, carbon fiber, a
oxy, Si(alkyl)3, halogen, CHO, COOR5, OH, CN, NO2, NO, NR5R6, Acetylene Chemistry 2nd Edition, Studies in Organic Chemistry 34, Elsevier
(Va): wherein R6 is halo, triflate or other (Va) with a mono-protected acetylene in the (100 g, 307.5 mmol), PdCI2 (PPh3) 2 (4
THF and in pressure vials at 100 °C [89]. acetylenes, followed by intramolecular acetylenic B R3 R2 R1 R4 H R5 R6 N R TSb Scheme 26
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2007610-An acetylene polymer having n repeating units represented by the formula (1(wherein R1, R5, R6, and R9 each is alkyl and R2, R3, R4, R7,
20071220-(b) a platinum acetylene complex catalyst of (R6)C(O)NR62, -(CH2)n-C(O)NR62, -(CH besonders bevorzugt von 100°C bis 180°C
R6-R10 is a substituent on the aromatic ring,Acetylene zinc propionate for 4-chloro-2- (tri(ligand-1) in THF 100 ml, all drops were
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R1, R6, and R7 are the same or different acetylene black, short carbon fiber, carbon black(a) 100 parts by weight of styrene type
wherein M4 is a Group 4 metal and R6 is acetylene insertion into the metal-thiolate bond heteroatoms selected from nitrogen, oxygen or
