CAS: 632-22-4; 1,1,3,3-Tetramethylurea

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[[2-[(Dimethylamino)Methyl]Phenyl]-(Dimethylcarbamoyloxy)-Methylsilyl] N,N-Dimethylcarbamate 以 氘代氯仿 作为反应溶剂,化学反应 20.0H,以81%的收率获得产物1,1,3,3-四甲基脲
参考文献:Aminosilylation Of Heterocumulenes And The Intramolecular Decomposition Of Their Silyl-Functionalized Adducts
标题:Aminosilylation Of Heterocumulenes And The Intramolecular Decomposition Of Their Silyl-Functionalized Adducts
摘要:Heteroorganic Amidosilanes Are Readily Obtained By Interaction Of Co2,Cs2 And Other Heterocumulenes With Pentacoordinated Diaminosilanes. A Comparison Is Made With The Corresponding Reactions Of Tetracoordinated Species. Decomposition Of These Bifunctional Organosilanes Gives 2-Substituted Ureido Derivatives And Base-Stabilized Low Coordinated Silicon Species,Seemingly By A Unimolecular Thermal Beta-Elimination.
DOI:10.1016/0022-328X(91)86160-R

专利信息

专利号:US-2024309024-A1
优先权日:2023-03-14
标题 :Direct synthesis of alkenylhalosilanes
发明人：LEWIS KENRICK MARTIN; ZHU YANJUN; BYRNE CHRISTOPHER M
权利人:MOMENTIVE PERFORMANCE MAT INC
摘要:A process for the direct synthesis of alkenylhalosilane monomers. Forming a slurry of liquid and copper-activated silicon from fresh silicon, cyclone fines and/or fine dust from silicon grinding, ultrafines and/or spent contact mass from the Direct Synthesis of alkylhalosilanes and arylhalosilanes, in a thermally stable solvent. Reacting the silanes by agitating the slurry with at least one unsaturated aliphatic or cycloaliphatic organohalide of the formula R1X, and optionally an organohalosilane and/or hydrogen halide, in the presence of a polymerization inhibiting Lewis base additive, at a reaction time, temperature and pressure effective to produce alkenylhalosilanes having the formulae, R1SiHX2, R12SiHX, R13SiX, R1SiX3, and R12SiX2 or mixtures thereof.

专利号:US-2021107859-A1
优先权日:2018-04-06
标题 :A process for the synthesis of carbon labeled organic compounds
发明人：AUDISIO DAVIDE; CANTAT THIBAULT; DESTRO GIANLUCA
权利人:COMMISSARIAT ENERGIE ATOMIQUE
摘要:A process for the synthesis of a carbon labeled organic compound containing a carbon labeled carboxyl group is described. A method of using carbon labeled organic compounds containing a carbon labeled carboxyl group according to the present disclosure; a process for manufacturing labeled pharmaceuticals and agrochemicals comprising synthesis of carbon labeled organic compounds containing a carbon labeled carboxyl group according to the present disclosure; and a process for producing tracers comprising synthesis of carbon labeled organic compounds containing a carbon labeled carboxyl group according to the present disclosure are also described.

专利号:US-5861532-A
优先权日:1997-03-04
标 题:Solid-phase synthesis of N-alkyl amides
发明人：BROWN EDWARD G; NUSS JOHN M
权利人:CHIRON CORP
摘要:Methods for solid phase synthesis of N-alkyl amides comprise reductive amination of carbonyl compounds using a reducing agent and an amine-containing linker bound to a solid support. The methods afford high yields of linker-bound, monoalkylated amines, and subsequent coupling with acid derivatives provide derivatized N-substituted amides in excellent yields after cleavage from the solid-phase. Compositions useful in solid phase synthesis are also described.

专利号:US-4910310-A
优先权日:1988-10-03
标 题:Synthesis of N-substituted 1,5-dideoxy-1,5-imino-L-fucitol derivatives
发明人：CAMPBELL ARTHUR L; BEHLING JAMES R; BABIAK KEVIN A; NG JOHN S; MUELLER RICHARD A; FLEET GEORGE W J
权利人:SEARLE & CO
摘要:Novel intermediates and method for the chemical synthesis of N-substituted 1,5-dideoxy-1,5-imino-L-fucitol derivatives are provided. A preferred intermediate is 1,5-dideoxy-1,5-imino-3, 4-O-isopropylidene-L-fucitol which is used to prepare the HIV inhibitor 1,5-dideoxy-1,5-imino-[N-ω-methyl caproate]-L-fucitol. These compounds are prepared in a short synthesis from the known compound 2,3-O-isopropylidene-D-lyxono-1,4-lactone or in a multi-step synthesis from D-galactose.

专利号:US-4592874-A
优先权日:1980-05-14
标 题:Process for the synthesis of alpha-chlorinated chloroformates
发明人：CAGNON GUY C; PITEAU MARC D; SENET JEAN-PIERRE G; OLOFSON ROY A; MARTZ JONATHAN T
权利人:POUDRES & EXPLOSIFS STE NALE
摘要:Process for the synthesis of alpha -chlorinated chloroformates, and new alpha -chlorinated chloroformates. The invention relates to a new process for the manufacture of alpha -chlorinated chloroformates and, to new alpha -chlorinated chloroformates as new industrial products. The process according to the invention consists of a synthesis, by catalytic phosgenation, of alpha -chlorinated chloroformates of the formula: in which: R represents a substituted or unsubstituted hydrocarbon radical and m represents an integer superior or equal to one, this synthesis consisting in reacting phosgene with the aldehyde R-CHO)m, in the presence of a catalyst which is an organic or inorganic substance which is capable in a medium containing an aldehyde of the formula R-CHO)m, phosgene and, possibly, a solvent, of generating a pair of ions one of which is an halogenide anion and the other is a cation which is sufficiently separated from said halogenide anion so as to give to the latter a nucleophilic power enabling it to react with the function(s) aldehyde of the molecule R-CHO)m.

专利号:US-5072040-A
优先权日:1989-04-06
标 题:Process for synthesis of sulfonylimides
发明人：ARMAND MICHEL
权利人:CENTRE NAT RECH SCIENT; HYDRO QUEBEC
摘要:The invention relates to a process for the synthesis of sulfonylimides. n The process for the synthesis of sulfonylimides of the general formula M[RSO 2 ) 2 N] y , in which M represents a metal chosen from alkali metals, alkaline earth metals, rare earths, Al, Sc, Y and Th, R represents a monovalent radical chosen from linear or branched aliphatic radicals having 1 to 8 carbon atoms, alicyclic radicals having 3 to 8 carbon atoms, aryl radicals having 3 to 8 carbon atoms, and y is a number equal to the valence of M, is characterized in that an ionic nitride of the formula M 3 N y , in which M and y have the meaning given above, is reacted with a sulfonyl halide of the formula RSO 2 X, in which R has the meaning given above, and X is chosen from F or Cl, in an aprotic polar solvent.