CAS: 100-61-8; N-Methylaniline

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CAS号618-40-6 1-甲基-1-苯肼 | CAS号98-95-3 硝基苯 | CAS号773837-37-9 sodium cyanide | CAS号121-69-7 N,N-二甲基苯胺 | CAS号616-38-6 碳酸二甲酯 | CAS号50-00-0 甲醛 | CAS号1934-92-5 N-甲基苯甲酰苯胺 | CAS号681439-95-2 2-methoxy-N-met... | CAS号75-59-2 四甲基氢氧化铵 | CAS号107089-76-9 4H-1,2,4-Benzot... | CAS号106003-69-4 N,2,4,6-tetrame... | CAS号614-00-6 甲基苯基亚硝胺 | CAS号554-68-7 三乙胺盐酸盐 | CAS号105577-05-7 3-chloro-N-meth... | CAS号10591-84-1 Thioperoxydicar... | CAS号111928-33-7 6-[4-(methylami... | CAS号10545-45-6 N-methyl-N-prop... | CAS号121-69-7 N,N-二甲基苯胺

1,2-二苯肼置于正丁基锂,Titanium(III) Chloride,水体系中,用 四氢呋喃,正己烷 用作溶剂,化学反应 1.25H,反应生成N-甲基苯胺
参考文献:三氯化 钛(III)的水溶液将肼还原为胺†
标题:三氯化 钛(III)的水溶液将肼还原为胺†
摘要:肼中n-n键的裂解被广泛用于胺的制备中,因此在有机合成中占有重要地位.在本文中,我们报告了一种新的方法,该方法可通过市售廉价的水溶液还原肼中的n-n键三氯化钛.反应可在从酸性到中性和碱性的宽ph范围内顺利进行,从而以非常好的收率获得胺.此方法与包含官能团的底物兼容,例如,Cc双键,苄基-氮键,苄氧基和酰基.
Doi:10.1039/c1Ob05328K

专利信息

专利号:WO-2013138200-A1
优先权日:2012-03-13
标 题 :Green chemistry synthesis of the malaria drug amodiaquine and analogs thereof
发明人：FORTUNAK JOSEPH MARIAN; KULKARNI AMOL ANANT; KING CHRISTOPHER
权利人:UNIV HOWARD
摘要:Methods are provided for a green chemistry one-pot synthesis of amodiaquine and amodiaquine analogs. The methods have a lower environmental impact, lower investment cost, reduced amounts of byproducts and impurities, and a shorter synthesis time, compared to current conventional synthesis methods. The methods reduce the total number of steps in the synthesis from four to five down to two, thereby simplifying production; and allow a reduced number of solvents and reagents to be used in production, thereby reducing the waste generated in the synthesis. The methods can reduce the waste to about 3-5 kilograms of waste generated per kilogram of product produced; and surprisingly improve the overall yield from 60-65% to greater than 90% as compared to the current conventional synthesis methods for amodiaquine and its analogs.

专利号:US-8350031-B2
优先权日:2008-06-02
标 题:Processes for the synthesis of levocetirizine and intermediates for use therein
发明人：RAO DHARMARAJ RAMACHANDRA; KANKAN RAJENDRA NARAYANRAO; GHAGARE MARUTI; CHIKHALIKAR SANDIP VASANT
权利人:CIPLA LTD; RAO DHARMARAJ RAMACHANDRA; KANKAN RAJENDRA NARAYANRAO; GHAGARE MARUTI; CHIKHALIKAR SANDIP VASANT
摘要:The present invention provides a compound of formula (IV) n nwherein R is Cl, Br, NO 2 , OH or OR′, and R′ is alkyl, and its use in the synthesis of levocetirizine, including its use in the synthesis of (−)-1-[(4-chlorophenyl)-phenylmethyl]piperazine, an intermediate useful in the synthesis of levocetirizine. The present invention also provides compounds (II) and (III) which are useful in the synthesis of compound (IV).

专利号:US-5118853-A
优先权日:1988-10-13
标题:Processes for the synthesis of 3-disubstituted aminoacroleins
发明人：LEE GEORGE T; REPIC OLJAN
权利人:SANDOZ LTD
摘要:Process for the synthesis of compounds of the formula ##STR1## comprising the steps of (i) reacting a compound of the formula ##STR2## with oxalyl chloride or oxalyl bromide to form the corresponding compound of the formula ##STR3## (ii) reacting said compound of the formula ##STR4## with a compound of the formula ##STR5## to form the corresponding compound of the formula ##STR6## (iii) hydrolyzing said compound of the formula ##STR7## to obtain the corresponding compound of the formula ##STR8## the use of the compounds of the formula ##STR9## for the synthesis of the compounds of the formula ##STR10## and the use of the intermediates of Formula VII for the direct synthesis of the compounds of Formula II, n wherein n R 1 is C 1-3 alkyl, phenyl or phenyl substituted by 1 to 3 substituents each of which is independently C 1-3 alkyl, C 1-3 alkoxy, fluoro, chloro, bromo or nitro (maximum of two nitro groups), n R 1b is phenyl or phenyl substituted by 1 to 3 substituents each of which is independently C 1-3 alkyl, C 1-3 alkoxy, fluoro, chloro, bromo or nitro (maximum of two nitro groups), n R 2 is C 1-3 alkyl, n one of R 3 and R 4 is ##STR11## and the other is primary or secondary C 1-6 alkyl not containing an asymmetric carbon atom, C 3-6 cycloalkyl or phenyl-(CH 2 ) m -, n wherein n R 7 is hydrogen, C 1-3 alkyl, n-butyl, i-butyl, t-butyl, C 1-3 alkoxy, n-butoxy, i-butoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, n R 8 is hydrogen, C 1-3 alkyl, C 1-3 alkoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, n R 9 is hydrogen, C 1-2 alkyl, C 1-2 alkoxy, fluoro or chloro, and n m is 1, 2 or 3, with the provisos that not more than one of R 7 and R 8 is trifluoromethyl, not more than one of R 7 and R 8 is phenoxy, and not more than one of R 7 and R 8 is benzyloxy, n R 5 is hydrogen, C 1-3 alkyl, n-butyl, i-butyl, t-butyl, C 3-6 cycloalkyl, C 1-3 alkoxy, n-butoxy, i-butoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, and n R 6 is hydrogen, C 1-3 alkyl, C 1-3 alkoxy, trifluoromethyl, fluoro, chloro, phenoxy, or benzyloxy, with the provisos that not more than one of R 5 and R 6 is trifluoromethyl, not more than one of R 5 and R 6 is phenoxy, and not more than one of R 5 and R 6 is benzyloxy, n R 10 is C 1-6 alkyl, each X is chloro or bromo, and each X.sup.⊖ is chloride or bromide.

专利号:US-2024228455-A1
优先权日:2021-04-27
标 题 :Synthesis of cbn and cbnv
发明人：KAVARANA MALCOLM J
权利人:TEEWINOT LIFE SCIENCES CORP
摘要:The invention includes chemical synthesis for preparing cannabinol (CBN) and cannabinovarin (CBNV). The process is suitable for inter alia the large-scale synthesis of pharmaceutical grade CBN and CBNV.

专利号:US-6815214-B2
优先权日:2000-12-29
标 题 :Pharmaceutical uses and synthesis of diketopiperazines
发明人：BOYCE JIM P; HOWBERT J JEFFRY; TABONE JOHN C
权利人:CELLTECH R & D INC
摘要:The synthesis of novel diketopiperazines, their use in inhibiting cellular events such as those involving NFK-α, NFK-β and in the treatment of inflammation events, a combinatorial library of diverse diketopiperazines and process for their synthesis as a library and as individual compounds. In particular novel diketopiperazines are disclosed including their synthesis and use in cellular events such as activation of the transcription factor, nuclear factor, TNF-α, TNF-β and also apoptosis.

专利号:US-10597358-B2
优先权日:2015-01-16
标题:Synthesis of carbamate or urea compounds
发明人：VAN DER HEIJDEN ANTONIUS EDUARD DOMINICUS MARIA; VAN GEEST ERIK; VAN DEN ELSHOUT JOS JOHAN MATTHIJS HUGO
权利人:TNO
摘要:The invention pertains to the synthesis of carbamate and urea compounds. In particular the invention is directed to the synthesis of carbamate and urea compounds which may be used in the production of compounds that are used to stabilize nitrocellulose. The method of the invention comprises preparing a carbamate or urea derivative comprising reacting an amine and a carbonate or carbamate in the presence of an ionic liquid.