89020-18-8

Basic information

• Product Name: (CO)5Mn^(1-)*{(CH₃CH₂)2N}3S⁽¹⁺⁾=(CO)5Mn{(CH₃CH₂)2N}3S
• Synonyms: (CO)5Mn^(1-)*{(CH₃CH₂)2N}3S⁽¹⁺⁾=(CO)5Mn{(CH₃CH₂)2N}3S
• CAS NO: 89020-18-8
• Molecular Weight: 443.446
• Mol File: 89020-18-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (CO)5Mn^(1-)*{(CH₃CH₂)2N}3S⁽¹⁺⁾=(CO)5Mn{(CH₃CH₂)2N}3S(CAS DataBase Reference)
• NIST Chemistry Reference: (CO)5Mn^(1-)*{(CH₃CH₂)2N}3S⁽¹⁺⁾=(CO)5Mn{(CH₃CH₂)2N}3S(89020-18-8)
• EPA Substance Registry System: (CO)5Mn^(1-)*{(CH₃CH₂)2N}3S⁽¹⁺⁾=(CO)5Mn{(CH₃CH₂)2N}3S(89020-18-8)

Safety Data

• Hazardous Substances Data: 89020-18-8(Hazardous Substances Data)

Upstream product

• 77023-79-1 (CO)5MnCO(CH₂)4OSi(CH₃)3 
• 59201-86-4 tris(diethylamino)sulfonium difluorotrimethylsiliconate 

Relevant articles and documents

Reactions of (CO)5MnSi(CH3)3 and CO with aldehydes and cyclic ethers. Syntheses of functionalized pentacarbonylmanganese acyls and homologated organic compounds

Reactions of (CO)5MnSi(CH3)3 (1) and CO with aldehydes RCHO and cyclic ethers OCH2(CH2)nCH2 (n = 0-2) give manganese acyls (CO)5MnCOCH(R)OSi(CH3)3 and (CO)5MnCOCH2(CH2)nCH 2OSi(CH3)3 (n = 0, 6; n = 1, 9; n = 2, 10) in 26-72% and 54-87% yields, respectively. Experiments conducted in the absence of CO show that these transformations proceed via labile alkyl intermediates (CO)5MnCH(R)OSi(CH3)3 and (CO)5MnCH2(CH2)nCH 2OSi(CH3)3. Reactions of propylene oxide and cyclohexene oxide with 1 and CO give the manganese acyls expected from SN2 ring opening. When the reaction of 1 with aldehydes is conducted in the presence of (CO)5MnH under careful conditions, homologated aldehydes (CH3)3SiOCHRCHO form in 55-78% yields. Reaction of 1 and (CO)5MnH with oxetane gives (CH3)3-SiOCH2CH2CH2CHO (13, 38%) and (CH3)3SiOCHCH2CH2CH2O (14, 59%). Reaction of 9 and 10 with [(CH3CH2)2N]3S+Si(CH 3)3F2- yields γ-butyrolactone (84-95%) and δ-valerolactone (60-85%), respectively. The mechanisms of these transformations, and their utility in organic and organometallic synthesis, are discussed.