Found inside – Page 83... method for the synthesis of a broad array of nitrogen-containing heterocycles [38]. ... in Pd2 (dba)3/P(o-tol)3 catalyst and sodium tert-butoxide. Found inside – Page 594However, later reports[16] show that sodium tert-butoxide should be preferred over potassium tert-butoxide because the former, while a strong enough base to ... Found inside – Page 271... then addition to aldehydes, epoxide synthesis 37-326, 37-327 Arsines, ... from amination ofarylchlorides, using sodium tert-butoxide–amines, ... Found inside – Page 415Scheme 3 Synthesis of 1- and 2-Iodobutane Using tert-Butyl Hypoiodite, ... with tert-butyl hypoiodite, formed in situ from sodium tertbutoxide and molecular ... Found inside – Page 842... (2-alkoxyvinyl)- phosphonium salt synthesis 363 Ethenes – see also Alkenes Ethenes, ... then dehydrobromination using sodium tert-butoxide 304 Ethenes, ... Found inside – Page 54Boons and co workers , in their studies on KDO glycoside synthesis , prepared 139 by the deacetoxylation of 146 with samarium iodide ( Equation 7 ) . ... After cyclization to a mixture of four methyl glycosides , equilibration with potassium tert - butoxide provided the two anomers ... Ozonolysis to form the C ( 7 ) ketone , followed by sodium borobydride reduction from the less hindered Scheme 38 2 : 1 2 : B ... Found inside – Page 4... None To prepare tert - butyl ethyl ether by Williamson's synthesis , the reactants needed are ( a ) Sodium ethoxide and sodium tertbutoxide ( b ) Sodium ... Found inside – Page 242... yet they also allow synthetic access and operational catalytic advantages ... MeOH Methanol NaH Sodium hydride NaO'Bu Sodium tert - butoxide NHC N ... Found inside – Page 14[53] Compared with the oxygen—sodium or oxygen—potassium bond, ... into organosodiums or organopotassiums using sodium or potassium tert-butoxide. Found inside – Page 1592... either sodium amide with tris(dimethylamino)phosphine[147] or sodium amide and sodium tert-butoxide,[148] allows for the synthesis of N,N-diethylaniline ... Found inside – Page 96We set out to undertake a comprehensive investigation including the development of methods for the synthesis of 1 , 1 - divinyl - and ... elimination by the action of potassium tert - butoxide in DMSO [ 9 ] ) , and its 2 , 2 - dichloro derivative was synthesized by the addition ... group by the action of 1 , 2 - dibromoethane in the presence of bases such as sodium hydride , sodium amide in liquid ammonia [ 13 ] ... Found inside – Page 402Alternatively, 70 can be obtained by the direct fusion of perylene monoimides 73 by heating with diazabicyclo[4.3.0]non-5-ene (DBN), sodium tert-butoxide in ... This is the only complete source that covers the purification of laboratory chemicals that are commercially available in this manner and format. * Complete update of this valuable, well-known reference * Provides purification procedures of ... Found inside – Page 2050... alkylarylether synthesis 547 Arylhalides, reaction with sodium tert-butoxide, nickelcatalyzed, aryl tert-butylether synthesis 607 Arylhalides, ... Found inside – Page 285butoxide . Reaction between Zirconium Tetrachloride and tert . - Butyl Alcohol . - tert . - Butyl alcohol ( 35 c.c. ) was added to ... Fusion of acetohalogeno - sugars in air with molten sodium leads to the production of non - reducing disaccharides of the trehalose type . ... for the direct constitutional synthesis of cellobiose and gentiobiose , we have made numerous unsuccessful attempts to synthesise octa ... Found inside – Page 940Sulfonium salts , ( silylmethyl ) - , desilylation using fluoride ion , sulfonium methylide generation , then addition to aldehydes , epoxide synthesis 347 Sulfonium salts ... tri - tert - butoxide 437 Telluronium salts , allyl - , deprotonation , telluronium allylide generation , then addition to ... from deprotection of 2 - 0 - benzylthreitols , using 4 - methoxybenzyl chloridesodium hydride 869 , 870 + Thymidine , 3 ' , 5 ... Found inside – Page 1358.2.16.3.3 Variation 3: Gallium Sodium Bis(binaphtholate)/Sodium tert-Butoxide Combination for Michael Reaction Gallium sodium bis(binaphtholate) 18 (GaSB) ... Found inside – Page c[19,20] In this synthesis sodium tert-butoxide in butan-2-ol is used as the base and ultimately provides the precursor polymer 9 from the monomer 8 in 88% ... Found inside – Page 435... -catalyzed synthesis of aryl tert-butyl ethers from aryl halides and sodium tert-butoxide has been described (eq 136). When aryl chlorides incorporating ... Found inside – Page 18Scheme 17 Metalation of a 1,3-Dithiane with Butyllithium–Sodium tert-Butoxide and Coupling with Iodomethane[95] In general, 2-metallo-1,3-dithianes are ... Found inside – Page 93I - 4 - 11 Oxirane and Oxetane Derivatives of Styrene , Synthesis and Polymerization Roman TRUXA and Miloš SUCHOPAREK ... The activity of initiator increased in sequence : sodium methoxide ( quíte inactive ) potassium tert - butoxide bis ... Found inside – Page 1155Scheme 64 Catalytic Amination of Aryl Chlorides Using Sodium tert-Butoxide[145] P NBui BuiNN BuiN 217 2 mol% Pd2(dba)3, 8 mol% 217 t-BuONa (1.5 equiv) NCCl ... Found inside – Page 100These reactions typically employ either sodium tert-butoxide or aqueous potassium hydroxide as a base. The biphasic system utilizing aqueous potassium ... Found inside – Page 1Acetals Pharmaceu For the for : aldehyde o synthesis . heterocycl Dimethyl C Chioroace 1.1 - Dimetr CH : CICHTE 001 ... 016 Sodium Butoxide Sodium Butylate NaOCH2CH2CH2CH3 017 Sodium tert - Butoxide Sodium tert - Butylate NaOC ... Found insideCCfrHal, CC^CC, C »t Hal V Potassium tert-butoxide/irradiation J Y Photochemical generation and trapping of strained ... CCHKC, NC^CC J Sodium Iodide H Generation of l-acylpyrazolo-4, 5-quinodimethane 77244F Dlene synthesis (cf. Found inside – Page 163[2] 38.4.5.1.2 Method 2: Synthesis of Sodium Alkyl Peroxides 38.4.5.1.2.1 Variation 1: Reaction of Sodium tert-Butoxide with Alkyl Hydroperoxides Sodium ... Found inside – Page 117By reaction of chromium(III) tert-butoxide with tert-butyl alcohol in the ... 30% tert-BuOOH) is added a solution of 3 g of sodium tert-butoxide in THF. Found inside – Page 415... hexamethylphosphorous triamide, butyllithium, and either potassium tert-butoxide or sodium tert-butoxide at room temperature to obtain N-hetaryl-1,2 ... The remaining two chapters the excess energy in reactions and spin states of carbenes. This book will be of value to organic chemists, organic chemistry researchers, teachers, and students. Found inside – Page 188[34] The reactive complex, typically prepared from copper(I) chloride and sodium tert-butoxide, is also generated in situ from sodium methoxide in place of ... Found inside – Page 438... triethylamine followed by potassium tert-butoxide gives the corresponding ... treatment with sodium tert-butoxide in tetrahydrofuran gives the oxetanes ... Found inside – Page 987The Synthesis of Compounds related to the Antirachitic Vitamins . aß - Di - 41 - cyclohexenylethylene . ... butoxide under the conditions used . ... acetylene and cyclohexanone were first condensed in presence of sodium or potassium tert . Found inside – Page 537Scheme 39 Michael Addition Catalyzed by Magnesium–Aluminum tert-Butoxide ... is greatly improved by addition of sodium tertbutoxide or sodium malonate, ... Effective and practical experimental procedures can be implemented quickly and easily in the lab.// The content of this e-book was originally published in December 2005. Found inside – Page 570... 278 potassium monoperoxysulfate, 339 (E)-Alkenones, synthesis, sodium borohydride, 411–412 N-(1-Alkenyl) acrylamides, synthesis, potassium tert-butoxide ... Found inside – Page 182Since tert-butoxide slowly decomposes during the reaction, “kicker charges” of the THF solution of sodium tert-butoxide are added at intervals. Found inside – Page 159Distilled cyclooctene ( 132.17 8 , 1.20 mol ) was treated with bromoform ( 310.00 g , 1.22 mol , 109 mL ) and potassium Br Br tert - butoxide ( 155 g , 1.55 mol ) according to 49b the procedure of Monson . Distillation afforded 9,9 ... Found inside – Page 30B : Me Me Me Me Base Ho Ha 91 93 B : Me io 94 The synthesis of side chain 9 started from treatment of crotonyl chloride ... Exposure of the lactone 91 to a methanol solution of sodium methoxide afforded dienoic acid 90 in very poor yield , ^ 3 due to the ... 43 hindered base , potassium tert - butoxide , the ring Chapter 2 30. Found inside – Page 131Bases typically used in the first step include sodium amide, potassium amide, potassium hydride, potassium tert-butoxide, lithium dialkylamides (such as ... Found inside – Page 596Scheme 303 Synthesis of N-Aryl-N';-(Trifluoromethylsulfonyl)carbodiimides ... In a few cases, where the use of potassium tert-butoxide fails, a sodium or ... Found inside... butyllithium–potassium tert-butoxide 08b-1455–1457 Arenes, heterosubstituted, metalation, using butyllithium–sodium tertbutoxide, arylsodium synthesis ... Found inside – Page iiibutylbiphenylide, then aldehyde addition, diol synthesis 788, 789 Alkoxides, a-lithio-, ... via lithium–sodium exchange, using sodium tert-butoxide 247, ... Found inside – Page 467[ 13 ] Scheme 1 Synthesis of 1 , 1 - Bis ( ethylsulfanyl ) propene from Propanedithioic Acid [ 13 ] SET Buli Ell ( 2 equiv ) vis ... sodium hydroxide in aqueous acetone , ( 25 , 26 ) thallium ethoxide , ( 16 , 271 potassium tert - butoxide , ( 171 sodium ... Found inside – Page 25[48] Stronger, bulkier alkoxides soon came into practice, e.g. potassium tert-butoxide and sodium 2-methylbutan-2-olale.[114] Sufficient concentrations (ca. Found inside – Page 304... the corresponding imidazolinium salt by a strong base (typically, sodium hydride, potassium hydride, potassium tert-butoxide, sodium tertbutoxide, DBU, ... Designed to provide a comprehensive, step-by-step approach to organic process research and development in the pharmaceutical, fine chemical, and agricultural chemical industries, this book describes the steps taken, following synthesis and ... Found inside – Page 402Alternatively, 70 can be obtained by the direct fusion of perylene monoimides 73 by heating with diazabicyclo[4.3.0]non-5-ene (DBN), sodium tert-butoxide in ... Found inside – Page 462Several examples are related to the synthesis and modification of benzoannelated cryptands . ... presence of sodium hydroxide , 27 – 29 while 3 - nitrophenylaza - 15crown - 5 ether lj was synthesised using sodium tert - butoxide as the base . Found inside – Page 746... using semicarbazide hydrochloride–sodium acetate–protic solvent 115, ... using potassium tert-butoxide–dimethylsulfoxide 119, 120 fi Alkanes, ...
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