2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane → HCID 70654776, compound

HRID 879113Notes

Reaction equation

HRID 879113 reaction equation
C(O[B:5]1[O:9][C:8]([CH3:11])([CH3:10])[C:7]([CH3:13])([CH3:12])[O:6]1)(C)C.C([Li])CCC.[F:19][C:20]1[CH:21]=[C:22]([C:27]2([OH:33])[CH2:32][CH2:31][O:30][CH2:29][CH2:28]2)[CH:23]=[C:24]([F:26])[CH:25]=1>>[F:26][C:24]1[CH:23]=[C:22]([C:27]2([OH:33])[CH2:32][CH2:31][O:30][CH2:29][CH2:28]2)[CH:21]=[C:20]([F:19])[C:25]=1[B:5]1[O:6][C:7]([CH3:12])([CH3:13])[C:8]([CH3:10])([CH3:11])[O:9]1

Participants

4

Reactant 3

HCID 50177412-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolaneHCID 193886354-(3,5-Difluorophenyl)oxan-4-olHCID 178418339Butyllithium

Product 1

HCID 70654776HCID 70654776, compoundYield 97%

Procedure

Method 3 was followed using 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (2.5 equiv.), butyllithium (2.4 equiv.) and 4-(3,5-difluorophenyl)tetrahydro-2H-pyran-4-ol (1.0 equiv.) to give 4-(3,5-difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)tetrahydro-2H-pyran-4-ol in 97% yield. 1H NMR (400 MHz, <cdcl3>) δ ppm 1.32-1.42 (m, 12H), 1.56-1.65 (m, 2H), 2.11 (d, J=3.13 Hz, 2H), 3.86-3.92 (m, 4H), 6.99 (d, J=9.00 Hz, 2H).

Sources & evidence

ORD record
ord-6b8a2130554c4a7382c32090865d2595
Source dataset
uspto-grants-2015_03
Patent number
US08987457B2

Reaction notes

Loading…