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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 905995Generated: October 30, 2026

Cesium carbonate → HCID 86642310, compound

https://huagongshe.com/reaction/905995

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
ReactantBenzophenone imineHCID 136809—
ReactantBinap, (A+-)-HCID 634876—
Reactant2-Bromo-7-methyl-5-[[2-(trimethylsilyl)ethoxy]methyl]-5H-pyrrolo[2,3-b]pyrazineHCID 86642309—
Catalystpalladium(II) acetateHCID 167845—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86642310HCID 8664231035.3%

Reaction Conditions

Temperature100 °C

Reaction Steps

2-Bromo-7-methyl-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine (0.346 g, 1.01 mmol), benzhydrylideneamine (0.19 mL, 1.11 mmol), Cs2CO3 (658 mg, 2.02 mmol), Pd(OAc)2 (23 mg, 0.101 mmol) and BINAP (63 mg, 0.101 mmol) were dissolved in THF (10 mL) and heated at 100° C. for 63 hr, cooled to RT, partitioned between EtOAc and brine. The organic layer was dried (MgSO4), filtered, concentrated, and purified by SiO2 chromatography (40 g SiO2, hexanes/EtOAc 0-35% EtOAc) to give 158 mg of benzhydrylidene-[7-methyl-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazin-2-yl]-amine as a yellow liquid (20% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08012974B2
Source datasetuspto-grants-2011_09
ORD IDord-aec36ac08e174424a4dd335aad3d97d1
Source noteuspto-grants-2011_09