CAS: 5973-71-7; 3,4-Dimethylbenzaldehyde

上下游产品

CAS号201230-82-2 carbon monoxide | CAS号31599-61-8 3,4-二甲基碘苯 | CAS号95-47-6 邻二甲苯 | CAS号25891-31-0 三甲酰胺 | CAS号332047-72-0 Tris(diformylam... | CAS号6966-10-5 3,4-二甲基苯甲醇 | CAS号102-46-5 3,4-二甲基氯苄 | CAS号94416-66-7 3,4-二甲基苄基溴 | CAS号877680-60-9 bis(diformylami... | CAS号75-86-5 丙酮氰醇 | CAS号14189-53-8 (3,4-Dimethylph... | CAS号147219-20-3 (2E)-3-(3,4-Dim... | CAS号1855-36-3 3,4-DIMETHYLSTY... | CAS号216590-48-6 1,2-dimethyl-4-... | CAS号26801-37-6 3-(3,4-DIMETHYL... | CAS号528-44-9 1,2,4-苯三甲酸 | CAS号6966-10-5 3,4-二甲基苯甲醇 | CAS号135861-56-2 1,3:2,4-二(3,4-二... | CAS号16155-55-8 2-(3,4-Dimethyl... | CAS号164391-52-0 5,7-二叔丁基-3-(3,4...

1,2,4-三甲基苯置于双氧水,3H4N(1+)*crmo6O18(Oh)6(3-)*7H2O体系中,用 水 作为反应溶剂,以75 %的收率获得产物3,4-二甲基苯甲醛
参考文献:多金属氧酸盐负载铬催化剂催化水中烷基芳烃选择性氧化
标题:多金属氧酸盐负载铬催化剂催化水中烷基芳烃选择性氧化
摘要:以(Nh 4) 3 [crmo 6 O 18 (Oh) 6]为催化剂,在温和条件下将烷基芳烃选择性氧化为芳香醛/酮/羧酸,收率中等.
DOI:10.1002/cctc.202300186

专利信息

专利号:US-9242925-B2
优先权日:2011-08-29
标题:Versatile and stereospecific synthesis of γ,δ-unsaturated amino acids by Wittig reaction
发明人：JUGE SYLVAIN; BAYARDON JEROME; REMOND EMMANUELLE; ONDEL-EYMIN MARIE-JOELLE
权利人:JUGE SYLVAIN; BAYARDON JEROME; REMOND EMMANUELLE; ONDEL-EYMIN MARIE-JOELLE; CENTRE NAT RECH SCIENT; UNIV BOURGOGNE
摘要:The γ,δ-unsaturated α-amino acids of general formula (I). Also, a versatile process for the stereospecific synthesis of said compounds of formula (I), involving a Wittig reaction. Further, intermediate products of general formulae (II) and (III), as shown below, which are involved in the synthesis of compounds (I). n n n n n n n n n n n n Compounds of general formula (I) may be useful as therapeutic substances, or as reagents or intermediates for fine chemistry.

专利号:US-9597327-B2
优先权日:2005-05-25
标 题:Synthesis of (R)-N-methylnaltrexone
发明人：DOSHAN HAROLD D; PEREZ JULIO
权利人:PROGENICS PHARM INC
摘要:This invention relates to stereoselective synthesis of R-MNTX and intermediates thereof, pharmaceutical preparations comprising R-MNTX or intermediates thereof and methods for their use.

专利号:US-9145368-B2
优先权日:2011-12-15
标 题 :Organocatalytic synthesis of chiral pyrazolidines and their analogues
发明人：KUMAR BOOPATHI SENTHIL; VENKATARAMASUBRAMANIAN VAITHIYANATHAN; SUDALAI ARUMUGAM
权利人:COUNCIL SCIENT IND RES
摘要:Disclosed herein is a highly enantio- (75 to 98% ee) and diastereoselective (99 to 100% de) synthesis of functionalized pyrazolidines via tandem a-amination-Corey Chaykovsky reaction of alpha unsubstituted aldehydes.

专利号:US-9233925-B2
优先权日:2012-03-07
标 题:Process for preparation of roflumilast
发明人：CHEN YI-JING; PIKUL STANISLAW; KUO SHEN-CHUN; CHU GUO-DONG
权利人:SCINOPHARM CHANGSHU PHARMACEUTICALS LTD
摘要:The present invention provides novel processes for the preparation of N-substituted benzamides having the formula VIc: n nIn some embodiments, the invention provides a process for preparation of roflumilast and other pharmaceutically active species. Novel compounds, including intermediates for the synthesis of roflumilast, are also provided.

专利号:US-7674904-B2
优先权日:2005-05-25
标 题 :Synthesis of R-N-methylnaltrexone

专利号:US-2007099946-A1
优先权日:2005-05-25
标 题:Synthesis of R-N-methylnaltrexone