(2S,3S,5R,7S,9S)-9-Isopropyl-3,4-dimethyl-2-phenyl-1,6-dioxa-4-aza-spiro[4.4]nonane-7-carbaldehyde

Base Information

Chemical Name:(2S,3S,5R,7S,9S)-9-Isopropyl-3,4-dimethyl-2-phenyl-1,6-dioxa-4-aza-spiro[4.4]nonane-7-carbaldehyde
CAS No.:324763-44-2
Molecular Formula:C₁₈H₂₅NO₃
Molecular Weight:303.401
Hs Code.:

Synonyms:(2S,3S,5R,7S,9S)-9-Isopropyl-3,4-dimethyl-2-phenyl-1,6-dioxa-4-aza-spiro[4.4]nonane-7-carbaldehyde

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of (2S,3S,5R,7S,9S)-9-Isopropyl-3,4-dimethyl-2-phenyl-1,6-dioxa-4-aza-spiro[4.4]nonane-7-carbaldehyde

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Technology Process of (2S,3S,5R,7S,9S)-9-Isopropyl-3,4-dimethyl-2-phenyl-1,6-dioxa-4-aza-spiro[4.4]nonane-7-carbaldehyde

There total 4 articles about (2S,3S,5R,7S,9S)-9-Isopropyl-3,4-dimethyl-2-phenyl-1,6-dioxa-4-aza-spiro[4.4]nonane-7-carbaldehyde 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: 60.0%

: 324763-42-0
((2S,3S,5R,7S,9S)-9-Isopropyl-3,4-dimethyl-2-phenyl-1,6-dioxa-4-aza-spiro[4.4]non-7-yl)-methanol

: 324763-44-2
(2S,3S,5R,7S,9S)-9-Isopropyl-3,4-dimethyl-2-phenyl-1,6-dioxa-4-aza-spiro[4.4]nonane-7-carbaldehyde

Guidance literature:: With sulfur trioxide pyridine complex; triethylamine; In dichloromethane; dimethyl sulfoxide; at 0 ℃;
DOI:10.1016/S0040-4039(00)01760-3

Reference yield:

: 192060-34-7
N-[(1S,2S)-2-hydroxy-1-methyl-2-phenylethyl]-3-N-dimethylbutyramide

: 324763-44-2
(2S,3S,5R,7S,9S)-9-Isopropyl-3,4-dimethyl-2-phenyl-1,6-dioxa-4-aza-spiro[4.4]nonane-7-carbaldehyde

Guidance literature:: Multi-step reaction with 4 steps

1.1: LDA; LiCl / tetrahydrofuran / 0 °C

1.2: 78 percent / 0 °C

2.1: 60 percent / NBS / 1,2-dimethoxy-ethane; H₂O / 0 °C

3.1: n-Bu₄NOAc / acetone / Heating

3.2: 85 percent / K₂CO₃ / methanol; H₂O / 20 °C

4.1: 60 percent / Py*SO₃; Et₃N / dimethylsulfoxide; CH₂Cl₂ / 0 °C

With N-Bromosuccinimide; tetrabutylammonium acetate; sulfur trioxide pyridine complex; triethylamine; lithium chloride; lithium diisopropyl amide; In tetrahydrofuran; 1,2-dimethoxyethane; dichloromethane; water; dimethyl sulfoxide; acetone;
DOI:10.1016/S0040-4039(00)01760-3

Reference yield:

: 324763-40-8
(S)-2-Isopropyl-pent-4-enoic acid ((1S,2S)-2-hydroxy-1-methyl-2-phenyl-ethyl)-methyl-amide

: 324763-44-2
(2S,3S,5R,7S,9S)-9-Isopropyl-3,4-dimethyl-2-phenyl-1,6-dioxa-4-aza-spiro[4.4]nonane-7-carbaldehyde

Guidance literature:: Multi-step reaction with 3 steps

1.1: 60 percent / NBS / 1,2-dimethoxy-ethane; H₂O / 0 °C

2.1: n-Bu₄NOAc / acetone / Heating

2.2: 85 percent / K₂CO₃ / methanol; H₂O / 20 °C

3.1: 60 percent / Py*SO₃; Et₃N / dimethylsulfoxide; CH₂Cl₂ / 0 °C

With N-Bromosuccinimide; tetrabutylammonium acetate; sulfur trioxide pyridine complex; triethylamine; In 1,2-dimethoxyethane; dichloromethane; water; dimethyl sulfoxide; acetone;
DOI:10.1016/S0040-4039(00)01760-3