“…PMHS was particularly appealing, being a by-product of the silicon industry that has lower price, higher availability and greener footprint than most other silane options. 34,35 We also observed that addition of tert-butanol to the reaction mixture significantly improved reactivity (entry 5-6 vs. 3-4), although without effect on selectivity. We rationalized this as a competition between the alcohol and the amino group of 2a in ligating the copper catalyst after the reduction step, thus the alcohol facilitates product elimination from the metal.…”
Section: Introductionmentioning
confidence: 59%
“…PMHS was particularly appealing, being a by-product of the silicon industry that has lower price, higher availability and greener footprint than most other silane options. 34,35…”
Section: Optimization Of the No-reduction Of 1a Using Copper Hydride ...mentioning
Copper hydride catalysis was used for selective N,O-reduction of 2,1-benzoisoxazoles in continuous flow to access 2-aminobenzophenones, key intermediates and cost drivers in the synthesis of benzodiazepines.
“…PMHS was particularly appealing, being a by-product of the silicon industry that has lower price, higher availability and greener footprint than most other silane options. 34,35 We also observed that addition of tert-butanol to the reaction mixture significantly improved reactivity (entry 5-6 vs. 3-4), although without effect on selectivity. We rationalized this as a competition between the alcohol and the amino group of 2a in ligating the copper catalyst after the reduction step, thus the alcohol facilitates product elimination from the metal.…”
Section: Introductionmentioning
confidence: 59%
“…PMHS was particularly appealing, being a by-product of the silicon industry that has lower price, higher availability and greener footprint than most other silane options. 34,35…”
Section: Optimization Of the No-reduction Of 1a Using Copper Hydride ...mentioning
Copper hydride catalysis was used for selective N,O-reduction of 2,1-benzoisoxazoles in continuous flow to access 2-aminobenzophenones, key intermediates and cost drivers in the synthesis of benzodiazepines.
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