Tmsntf2
・川口，尼崎の在庫は即日，保管在庫は2〜3営業日以内の出荷となります。 川口，尼崎の配送対象エリアは各々異なります。 トリフルオロメタンスルホン酸トリメチルシリル（トリフルオロメタンスルホンさんトリメチルシリル、trimethylsilyl trifluoromethanesulfonate）は、トリフルオロメタンスルホン酸のトリメチルシリルエステルである。 クロロトリメチルシランと似た反応性を示し、有機合成においてTMS化試薬やルイス ChemicalBook あなたのためにトリフルオロメタンスルホン酸 トリメチルシリル(27607-77-8)の化学的性質を提供して、融点、価格、蒸気圧、沸点、毒性、比重、沸点、密度、分子式、分子量、物理的な性質、毒性 税関のコードなどの情報、同時にあなたは更にトリフルオロメタンスルホン酸 トリ N-trimethylsilyl bis(trifluoromethanesulfonyl)imide (TMSNTf2) was readily prepared in situ by protodesilylation of trimethylsilane, allyl- or phenyltrimethylsilane with bis(trifluoromethylsulfonyl)imide. NMR studies showed that TMSNTf2 was much more effective than TMSOTf in complexing the carbonyl group of trans-methylcrotonate. N-trimethylsilyl bis(trifluoromethanesulfonyl)imide (TMSNTf2) was readily prepared in situ by protodesilylation of trimethylsilane, allyl- or phenyltrimethylsilane with bis(trifluoromethylsulfonyl)imide. NMR studies showed that TMSNTf2 was much more effective than TMSOTf in complexing the carbonyl group of trans-methylcrotonate. Benzyl nitriles containing an alkenyl or aryl group at the ortho position were smoothly converted into aryl amines in good yields under two sets of mild silylation conditions: (1) nonbasic conditions using TMSNTf2-iPr2NEt or (2) basic anionic conditions using lithium diisopropylamide-triisopropylsilyl chloride (LDA-TIPSCl). Abstract N-trimethylsilyl-bis(trifluoromethanesulfonyl)imide (TMSNTf2) was readily prepared from allyltrimethylsilane and bis(trifluoromethanesulfonyl)imide. It was shown to complex carbonyl groups much more effectively than trimethylsilyl triflate.
TMSNTf 2 was first prepared according to reported procedures that use the protodesylilation of allyltrimethylsilane with commercially available HNTf 2 at room temperature. 22, 23 It is important to mention, that all the glycosidation reactions were carried out under an inert atmosphere and any other precautions were necessary for the handling of permethacrylated carbohydrates. 18b
8 Sep 2013 H. H. CH3. DC-45-A1. TMSNTf2, 4 Å MS,. CH2Cl2, Et2O. 58–78%. O. CH3. O. OH. OAc. OAc. CH3. H. 5. DDQ,. CH2Cl2, H2O. 83%. H. O. CH3. 1, 1 a, TMSNTf2, 51, 97, 12. 2, 1 a, AgNTf2, 60, 74, 7. 3, 1 c, TMSNTf2, 67, 75, 28. 4, 1 c, AgNTf2, 45, 51, 12. 5, 1 d, TMSNTf2, 0, 0, 2. 6, 1 d, AgNTf2, 4, 0, 1 lyl triflamide, TMSNTf2, rapidly produces TMSCl and a new. 3-bora-9-azaindene, 5H, in which the NTf2 anion has replaced the chloride ion. The X-ray structure 1 Feb 2007 TMSNTf2 was generated by protodesilylation of allyltrimethylsilane of trimethylsilyl enol ethers could also generate TMSNTf2, but at -78 °C,
28 Jun 2018 In this communication a new simple protocol, using TMSNTf2 or Tf2NH as the catalyst, for the activation of trichloroacetimidate donors is
treatment of 555 with TMSNTf2, a stronger Lewis acid, solely resulted in decomposition. We hypothesized that the lability of the acetal protecting group was TMSNTf2 (59 µmol, 21 mg) was added at –78 °C to a solution of complex 10a. ( 59 µmol, 31 mg) in CD2Cl2 (0.4 mL). The mixture was transferred into an NMR tube N-trimethylsilyl bis(trifluoromethanesulfonyl)imide (TMSNTf2) was readily prepared in situ by protodesilylation of trimethylsilane, allyl- or phenyltrimethylsilane with TMSNTf 2 was first prepared according to reported procedures that use the protodesylilation of allyltrimethylsilane with commercially available HNTf 2 at room temperature. 22, 23 It is important to mention, that all the glycosidation reactions were carried out under an inert atmosphere and any other precautions were necessary for the handling of permethacrylated carbohydrates. 18b TMSNTf2 has been used efficiently as a promoter in glycosidation reaction involving permethacrylated Schmidt reagents. Benoit Mathieu and L~on Ghosez* Laboratoire de Chimie Organique de Synth~se, Universit6 catholique de Louvain, Place L. Pasteur 1, B-1348 Louvain-la-Neuve, BELGIUM Dedicated to Professor Waldemar Adam on the occasion of his 60th birthday Abstract : N-trimethylsilyl-bis(trifluoromethanesulfonyl)imide (TMSNTf:) was readily prepared from
Abstract N-trimethylsilyl-bis(trifluoromethanesulfonyl)imide (TMSNTf2) was readily prepared from allyltrimethylsilane and bis(trifluoromethanesulfonyl)imide. It was shown to complex carbonyl groups much more effectively than trimethylsilyl triflate.
N-(Trimethylsilyl)bis(trifluoromethanesulfonyl)imide | C5H9F6NO4S2Si | CID 11013624 - structure, chemical names, physical and chemical properties, 11 Mar 2003 Highly chemo- and stereoselective glycosidation of permethacrylated O-glycosyl trichloroacetimidate reagents promoted by TMSNTf2.
Abstract N-trimethylsilyl-bis(trifluoromethanesulfonyl)imide (TMSNTf2) was readily prepared from allyltrimethylsilane and bis(trifluoromethanesulfonyl)imide. It was shown to complex carbonyl groups much more effectively than trimethylsilyl triflate.
1 Feb 2007 TMSNTf2 was generated by protodesilylation of allyltrimethylsilane of trimethylsilyl enol ethers could also generate TMSNTf2, but at -78 °C, 28 Jun 2018 In this communication a new simple protocol, using TMSNTf2 or Tf2NH as the catalyst, for the activation of trichloroacetimidate donors is treatment of 555 with TMSNTf2, a stronger Lewis acid, solely resulted in decomposition. We hypothesized that the lability of the acetal protecting group was TMSNTf2 (59 µmol, 21 mg) was added at –78 °C to a solution of complex 10a. ( 59 µmol, 31 mg) in CD2Cl2 (0.4 mL). The mixture was transferred into an NMR tube
1, 1 a, TMSNTf2, 51, 97, 12. 2, 1 a, AgNTf2, 60, 74, 7. 3, 1 c, TMSNTf2, 67, 75, 28. 4, 1 c, AgNTf2, 45, 51, 12. 5, 1 d, TMSNTf2, 0, 0, 2. 6, 1 d, AgNTf2, 4, 0, 1 lyl triflamide, TMSNTf2, rapidly produces TMSCl and a new. 3-bora-9-azaindene, 5H, in which the NTf2 anion has replaced the chloride ion. The X-ray structure