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US 2018/0294525 A1Published application
Novel lithium boracarbonate ion pair
AssigneeRiken
InventorsLiang ZHANG, Masayoshi NISHIURA, Zhaomin HOU
Life of this patent
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Abstract
The present invention is a method for producing a compound (i), including the step of: reacting a compound (ii), a compound (iii), and carbon dioxide together in the presence of a copper catalyst and a lithium-based nucleophilic reagent, the compound (ii) being represented by formula (1): R3−C(R30)=X (1), the compound (iii) being represented by formula (2): (Z1)B−B(Z2) (2), and the compound (i) being represented by formula (3):
Claims11
A method for producing a compound (i), comprising the step of:
- reacting a compound (ii), a compound (iii), and carbon dioxide together in the presence of a copper catalyst and a lithium-based nucleophilic reagent,
- the compound (ii) being represented by formula (1):
- R3−C(R30)=X (1),
- the compound (iii) being represented by formula (2):
- (Z1)B−B(Z2) (2), and
- the compound (i) being represented by formula (3):
- wherein X is O or NR4;
- Z1 and Z2 are each two hydroxyl groups, or are protecting groups for a boron atom (B) which protecting groups may be identical to or different from each other;
- R1 and R2 are each a group that is identical to Z1 or Z2, and may form a ring structure by binding to each other;
- R3 is any one selected from a hydrogen atom;
- an alkyl group;
- an alkenyl group;
- an alkynyl group;
- an aryl group;
- an aralkyl group;
- an alkylthio group;
- and an arylthio group each of which except the hydrogen atom may have a linear, branched, or cyclic structure;
- R30 is any one selected from a hydrogen atom;
- an alkyl group;
- an alkenyl group;
- an alkynyl group;
- an aryl group;
- an aralkyl group;
- an alkylthio group;
- and an arylthio group each of which except the hydrogen atom may have a linear, branched, or cyclic structure;
- and R4 is any one selected from an alkyl group;
- an alkenyl group;
- an alkynyl group;
- an aryl group;
- an aralkyl group;
- an alkylthio group;
- an arylthio group;
- an alkylsulfinyl group;
- an arylsulfinyl group;
- an alkylsulfonyl group;
- an arylsulfonyl group;
- an alkoxycarbonyl group;
- an aryloxycarbonyl group;
- a phosphoryl group;
- and a phosphonyl group each of which may have a linear, branched, or cyclic structure.
37 more elements
A compound represented by formula (3A):
- wherein Y1 is a ligand to a copper atom;
- X is O or NR4;
- R1 and R2 are each a hydroxyl group, or are protecting groups for a boron atom (B) which protecting groups may be identical to or different from each other, and may form a ring structure by binding to each other;
- R3 is any one selected from a hydrogen atom;
- an alkyl group;
- an alkenyl group;
- an alkynyl group;
- an aryl group;
- an aralkyl group;
- an alkylthio group;
- and an arylthio group each of which except the hydrogen atom may have a linear, branched, or cyclic structure;
- R30 is any one selected from a hydrogen atom;
- an alkyl group;
- an alkenyl group;
- an alkynyl group;
- an aryl group;
- an aralkyl group;
- an alkylthio group;
- and an arylthio group each of which except the hydrogen atom may have a linear, branched, or cyclic structure;
- and R4 is any one selected from an alkyl group;
- an alkenyl group;
- an alkynyl group;
- an aryl group;
- an aralkyl group;
- an alkylthio group;
- an arylthio group;
- an alkylsulfinyl group;
- an arylsulfinyl group;
- an alkylsulfonyl group;
- an arylsulfonyl group;
- an alkoxycarbonyl group;
- an aryloxycarbonyl group;
- a phosphoryl group;
- and a phosphonyl group each of which may have a linear, branched, or cyclic structure.
31 more elements
A compound represented by formula (3):
- wherein X is O or NR4;
- R1 and R2 are each a hydroxyl group, or are protecting groups for a boron atom (B) which protecting groups may be identical to or different from each other, and may form a ring structure by binding to each other;
- R3 is any one selected from a hydrogen atom;
- an alkyl group;
- an alkenyl group;
- an alkynyl group;
- an aryl group;
- an aralkyl group;
- an alkylthio group;
- and an arylthio group each of which except the hydrogen atom may have a linear, branched, or cyclic structure;
- R30 is any one selected from a hydrogen atom;
- an alkyl group;
- an alkenyl group;
- an alkynyl group;
- an aryl group;
- an aralkyl group;
- an alkylthio group;
- and an arylthio group each of which except the hydrogen atom may have a linear, branched, or cyclic structure;
- and R4 is any one selected from an alkyl group;
- an alkenyl group;
- an alkynyl group;
- an aryl group;
- an aralkyl group;
- an alkylthio group;
- an arylthio group;
- an alkylsulfinyl group;
- an arylsulfinyl group;
- an alkylsulfonyl group;
- an arylsulfonyl group;
- an alkoxycarbonyl group;
- an aryloxycarbonyl group;
- a phosphoryl group;
- and a phosphonyl group each of which may have a linear, branched, or cyclic structure.
30 more elements
Dependencies are inferred from the claim text.