Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 963853Generated: October 26, 2026

Triethylamine → Tert-butyl 1-(aminoimino-methyl)-piperidin-4-ylmethylcarbamate hemisulfite

https://huagongshe.com/reaction/963853

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantTert-butyl (piperidin-4-ylmethyl)carbamateHCID 723429—
ReactantMethanesulfonic acid, aminoimino-HCID 9877361—
SolventDimethylformamideHCID 6228—
ProductTert-butyl 1-(aminoimino-methyl)-piperidin-4-ylmethylcarbamate hemisulfiteHCID 131720709—

Reaction Steps

A solution of 130 g of 1,1-dimethylethyl (4piperidinylmethyl)-carbamate in 1300 ml of DMF is treated with 138 ml of triethylamine and 61.8 g of formamidinesulfonic acid and the mixture is stirred at room temperature overnight. The precipitated material is filtered, suspended in 500 ml of ethanol, again filtered off and dried. There are obtained 65.6 g of tert-butyl 1-(aminoimino-methyl)-piperidin-4-ylmethylcarbamate hemisulfite, MS (ISP): 257.4 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05763604
Source datasetuspto-grants-1998_06
ORD IDord-86e6069001dc41e4af4476953984ac18
Source noteuspto-grants-1998_06