9,10-dihydro-6-methoxy-2,2,8,8-tetramethyl-2H,8H-benzo<1,2-b:3,4-b'>dipyran

Base Information

Chemical Name:9,10-dihydro-6-methoxy-2,2,8,8-tetramethyl-2H,8H-benzo<1,2-b:3,4-b'>dipyran
CAS No.:85434-29-3
Molecular Formula:C₁₇H₂₂O₃
Molecular Weight:274.36
Hs Code.:

Synonyms:9,10-dihydro-6-methoxy-2,2,8,8-tetramethyl-2H,8H-benzo<1,2-b:3,4-b'>dipyran

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Chemical Property of 9,10-dihydro-6-methoxy-2,2,8,8-tetramethyl-2H,8H-benzo<1,2-b:3,4-b'>dipyran

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Technology Process of 9,10-dihydro-6-methoxy-2,2,8,8-tetramethyl-2H,8H-benzo<1,2-b:3,4-b'>dipyran

There total 2 articles about 9,10-dihydro-6-methoxy-2,2,8,8-tetramethyl-2H,8H-benzo<1,2-b:3,4-b'>dipyran 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:

: 85434-22-6
2,3,9,10-tetrahydro-6-methoxy-2,2,8,8-tetramethyl-4H,8H-benzo<1,2-b:3,4-b'>dipyran-4-one

: 1481-93-2
4-hydroxychroman

: 85434-29-3
9,10-dihydro-6-methoxy-2,2,8,8-tetramethyl-2H,8H-benzo<1,2-b:3,4-b'>dipyran

Guidance literature:: With hydrogenchloride; lithium aluminium tetrahydride; Yield given. Multistep reaction; 1)Et₂O, room temp., 1 h 2) room temp., 1 h;
DOI:10.1016/0040-4020(82)85025-4

Reference yield:

: 6100-60-3
4-methoxybenzene-1,3-diol

: 85434-29-3
9,10-dihydro-6-methoxy-2,2,8,8-tetramethyl-2H,8H-benzo<1,2-b:3,4-b'>dipyran

Guidance literature:: Multi-step reaction with 2 steps

1: 1) methanesulphonic acid / 1) 70 deg C, 30 min 2) 1 h, 70 deg C

2: 1) LAH 2) HCl / 1)Et₂O, room temp., 1 h 2) room temp., 1 h

With hydrogenchloride; lithium aluminium tetrahydride; methanesulfonic acid;
DOI:10.1016/0040-4020(82)85025-4