103822-61-3Relevant academic research and scientific papers
THE FIRST ISOLATION AND SOME REACTIONS OF THE CATIONIC TRIHYDRIDES, +TsO- (M = W, Mo)
Igarashi, Tadashi,Ito, Takashi
, p. 1699 - 1702 (1985)
MCp2H2 was protonated with TsOH to give +TsO- , which was isolated and characterized spectroscopically. 2a and 2b reduced acetone to i-PrOH indicating their more hydridi
Syntheses and reactions of cationic cyclic (γ-hydroxypropyl)molybdenum(IV) derivatives: New pathway for molybdenaoxacyclopentanes
Ito, Takashi,Haji, Katsuhiko,Suzuki, Fumihiro,Igarashi, Tadashi
, p. 2325 - 2331 (2008/10/08)
The reaction of Cp2MoH2 (Cp = η5-C5H5) with CH2=C(R1)C(R2)2OH (R1 = R2 = H; R1 = H, R2 = CH3; R1 = CH3, R2 = H) in the presence of TsOH (p-CH3C6H4SO3H) afforded [Cp2MoCH2CH(R1)C(R2) 2OH]+TsO- (3). In the case of allyl alcohol, the reaction was accompanied by the formation of [Cp2Mo(η3-allyl)]+TsO- (5). A higher ratio of 3/5 in the product mixture was obtained by employing a stronger protonic acid such as gaseous HCl. Complexes 3 were deprotonated by treatment with NaOH in ethanol to give the neutral oxametallacycle Cp2MoCH2CH(R1)C(R2)2O (4). On protonation with TsOH, 4 reverted to 3, whereas alkylation at the oxygen atom of 4 with RI (R = CH3, C2H5) yielded the corresponding cationic complexes [Cp2MoCH2CH(R1)C(R2) 2OR]+I- (6). A possible reaction pathway for the formation of 3 and 5 was discussed with special reference to the product selectivity.
Oxametallacyclopentane derivatives (η5-C5H5)2MoCH 2CH(R1)C(R2)(R3)O from substituted allylic alcohols and cationic molybdenum trihydride
Ito, Takashi,Igarashi, Tadashi
, p. 199 - 201 (2008/10/08)
The mechanism of formation of a cationic (γ-hydroxyalkyl)molybdenum complex by the reaction of [(η-C5H5)2MoH3] +[p-CH3C6H4SO3] - with a substituted allylic alcohol is discussed in terms of the olefin insertion into the Mo-H bond. The former was deprotonated by treatment with NaOH to give the neutral oxametallacycle (η-C5H5)2MoCH2CH(R 1)C(R2)(R3)O.
