(8R,8aS)-8-Benzyloxy-8-methyl-6-[(E)-(R)-2-methyl-5-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-hex-4-en-(E)-ylidene]-hexahydro-indolizin-7-one

Base Information

Chemical Name:(8R,8aS)-8-Benzyloxy-8-methyl-6-[(E)-(R)-2-methyl-5-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-hex-4-en-(E)-ylidene]-hexahydro-indolizin-7-one
CAS No.:289659-70-7
Molecular Formula:C₂₉H₄₁NO₄
Molecular Weight:467.649
Hs Code.:

Synonyms:(8R,8aS)-8-Benzyloxy-8-methyl-6-[(E)-(R)-2-methyl-5-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-hex-4-en-(E)-ylidene]-hexahydro-indolizin-7-one

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Chemical Property of (8R,8aS)-8-Benzyloxy-8-methyl-6-[(E)-(R)-2-methyl-5-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-hex-4-en-(E)-ylidene]-hexahydro-indolizin-7-one

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Technology Process of (8R,8aS)-8-Benzyloxy-8-methyl-6-[(E)-(R)-2-methyl-5-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-hex-4-en-(E)-ylidene]-hexahydro-indolizin-7-one

There total 10 articles about (8R,8aS)-8-Benzyloxy-8-methyl-6-[(E)-(R)-2-methyl-5-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-hex-4-en-(E)-ylidene]-hexahydro-indolizin-7-one 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: 86.0%

: 144766-10-9
(7R,8R,8aS)-8-(benzyloxy)-7-hydroxy-6(Z)-<6(R),7(R)-(isopropylidenedioxy)-2(R),5-dimethyl-4(E)-octenylidene>-8-methyloctahydroindolizine

: 289659-70-7
(8R,8aS)-8-Benzyloxy-8-methyl-6-[(E)-(R)-2-methyl-5-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-hex-4-en-(E)-ylidene]-hexahydro-indolizin-7-one

Guidance literature:: With oxalyl dichloride; dimethyl sulfoxide; triethylamine;
DOI:10.1021/ja001440t

Reference yield:

: 123190-88-5
(R)-2-(S)-Pyrrolidin-2-yl-1-(2-trimethylsilanyl-ethoxymethoxy)-propan-2-ol

: 289659-70-7
(8R,8aS)-8-Benzyloxy-8-methyl-6-[(E)-(R)-2-methyl-5-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-hex-4-en-(E)-ylidene]-hexahydro-indolizin-7-one

Guidance literature:: Multi-step reaction with 7 steps

1: i-Pr₂NEt / tetrahydrofuran

2: 82 percent / KH / tetrahydrofuran

3: 92 percent / NBu₄F / tetrahydrofuran

4: 89 percent / (COCl)2; DMSO; Et₃N

5: 93 percent / Ni(COD)2; PBu₃ / tetrahydrofuran / 18 h / -10 - 0 °C

6: 87 percent / HF*pyridine / tetrahydrofuran

7: 86 percent / (COCl)2; DMSO; Et₃N

With bis(1,5-cyclooctadiene)nickel ⁽⁰⁾; oxalyl dichloride; tributylphosphine; tetrabutyl ammonium fluoride; potassium hydride; pyridine hydrogenfluoride; dimethyl sulfoxide; triethylamine; N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; 1: propargylation / 2: benzylation / 3: deacetalization / 4: Swern oxidation / 5: Cyclization / 6: desilylation / 7: Swern oxidation;
DOI:10.1021/ja001440t

Reference yield:

: 123190-87-4
(1R,7aS)-tetrahydro-1-methyl-1-<<2-(trimethylsilyl)ethoxy>methoxy>methyl-1H,3H-pyrrolo<1,2-c>oxazol-3-one

: 289659-70-7
(8R,8aS)-8-Benzyloxy-8-methyl-6-[(E)-(R)-2-methyl-5-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-hex-4-en-(E)-ylidene]-hexahydro-indolizin-7-one

Guidance literature:: Multi-step reaction with 8 steps

1: KOH / ethanol

2: i-Pr₂NEt / tetrahydrofuran

3: 82 percent / KH / tetrahydrofuran

4: 92 percent / NBu₄F / tetrahydrofuran

5: 89 percent / (COCl)2; DMSO; Et₃N

6: 93 percent / Ni(COD)2; PBu₃ / tetrahydrofuran / 18 h / -10 - 0 °C

7: 87 percent / HF*pyridine / tetrahydrofuran

8: 86 percent / (COCl)2; DMSO; Et₃N

With bis(1,5-cyclooctadiene)nickel ⁽⁰⁾; potassium hydroxide; oxalyl dichloride; tributylphosphine; tetrabutyl ammonium fluoride; potassium hydride; pyridine hydrogenfluoride; dimethyl sulfoxide; triethylamine; N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; ethanol; 1: Hydrolysis / 2: propargylation / 3: benzylation / 4: deacetalization / 5: Swern oxidation / 6: Cyclization / 7: desilylation / 8: Swern oxidation;
DOI:10.1021/ja001440t