HuagongsheHuagongshe Chemistry Print Report · For research reference only
Formaldehyde → chloromethyl 4-methoxybenzoate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Formaldehyde | HCID 712 | — |
| Reactant | p-Anisoyl chloride | HCID 7477 | — |
| Reactant | Chloromethyl pivalate | HCID 87885 | — |
| Catalyst | Zincchloride | HCID 3007855 | — |
| Product | chloromethyl 4-methoxybenzoate | HCID 242190 | 12% |
Reaction Steps
A similar procedure (Iyer, R. P. et al. Synth. Commun. 1995, 25, 2739-2749) to that described for the preparation of 41 was followed using p-anisoyl chloride (5.0 g, 29.4 mmol), paraformaldehyde (883 mg, 29.4 mmol) and zinc chloride (31 mg, 0.22 mmol), at 80° C. for 16 h. Purification by flash chromatography (hexane/ethyl acetate 4:1) afforded chloromethyl p-methoxybenzoate (48) as a yellow oil (0.74 g, 3.69 mmol, 12%). 1H NMR (300 MHz, CDCl3) δ 3.87 (3H, s, OMe), 5.94 (2H, s, CH2), 6.92-6.96 (2H, m, Ar), 8.01-8.06 (2H, m, Ar).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09198420B2 |
| Source dataset | uspto-grants-2015_12 |
| ORD ID | ord-0c900c25e62f42feb8cfc5073dd51976 |
| Source note | uspto-grants-2015_12 |