(4-Benzyloxy-4,5,6,7-tetrahydro-benzofuran-2-ylmethyl)-prop-2-ynyl-carbamic acid tert-butyl ester

Base Information

Chemical Name:(4-Benzyloxy-4,5,6,7-tetrahydro-benzofuran-2-ylmethyl)-prop-2-ynyl-carbamic acid tert-butyl ester
CAS No.:179911-25-2
Molecular Formula:C₂₄H₂₉NO₄
Molecular Weight:395.499
Hs Code.:

Synonyms:(4-Benzyloxy-4,5,6,7-tetrahydro-benzofuran-2-ylmethyl)-prop-2-ynyl-carbamic acid tert-butyl ester

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Chemical Property of (4-Benzyloxy-4,5,6,7-tetrahydro-benzofuran-2-ylmethyl)-prop-2-ynyl-carbamic acid tert-butyl ester

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Technology Process of (4-Benzyloxy-4,5,6,7-tetrahydro-benzofuran-2-ylmethyl)-prop-2-ynyl-carbamic acid tert-butyl ester

There total 6 articles about (4-Benzyloxy-4,5,6,7-tetrahydro-benzofuran-2-ylmethyl)-prop-2-ynyl-carbamic acid tert-butyl ester which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 99.0%

: 24424-99-5
di-tert-butyl dicarbonate

: 179911-24-1
(4-Benzyloxy-4,5,6,7-tetrahydro-benzofuran-2-ylmethyl)-prop-2-ynyl-amine

: 179911-25-2
(4-Benzyloxy-4,5,6,7-tetrahydro-benzofuran-2-ylmethyl)-prop-2-ynyl-carbamic acid tert-butyl ester

Guidance literature:: With hydroxylamine hydrochloride; triethylamine; In dichloromethane; for 1.5h; Ambient temperature;
DOI:10.1016/0040-4020(96)00386-9

Reference yield:

: 16806-93-2
4-oxo-4,5,6,7-tetrahydrobenzofuran

: 179911-25-2
(4-Benzyloxy-4,5,6,7-tetrahydro-benzofuran-2-ylmethyl)-prop-2-ynyl-carbamic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: 89 percent / NaBH₄ / methanol / 2 h / Ambient temperature

2: 1.) NaH / 1.) dimethoxymethane, 0 deg C, 1 h, 2.) dimethoxymethane, RT, 4 h

3: 1.) POCl₃ / 2.) RT, 30 min

4: 72 percent / NaBH₃CN / methanol / Ambient temperature

5: 99 percent / Et₃N, NH₂OH*HCl / CH₂Cl₂ / 1.5 h / Ambient temperature

With sodium tetrahydroborate; hydroxylamine hydrochloride; sodium hydride; sodium cyanoborohydride; triethylamine; trichlorophosphate; In methanol; dichloromethane;
DOI:10.1016/0040-4020(96)00386-9

Reference yield:

: 504-02-9
1,3-cylohexanedione

: 179911-25-2
(4-Benzyloxy-4,5,6,7-tetrahydro-benzofuran-2-ylmethyl)-prop-2-ynyl-carbamic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 6 steps

1: 1.) aq. NaHCO₃, 2.) aq. H₂SO₄

2: 89 percent / NaBH₄ / methanol / 2 h / Ambient temperature

3: 1.) NaH / 1.) dimethoxymethane, 0 deg C, 1 h, 2.) dimethoxymethane, RT, 4 h

4: 1.) POCl₃ / 2.) RT, 30 min

5: 72 percent / NaBH₃CN / methanol / Ambient temperature

6: 99 percent / Et₃N, NH₂OH*HCl / CH₂Cl₂ / 1.5 h / Ambient temperature

With sodium tetrahydroborate; sulfuric acid; hydroxylamine hydrochloride; sodium hydride; sodium cyanoborohydride; sodium hydrogencarbonate; triethylamine; trichlorophosphate; In methanol; dichloromethane;
DOI:10.1016/0040-4020(96)00386-9